ICSE BlueJ Logical Program |
Logical Questions for Java or BlueJ |
(Note: All programs codes are Tested in BlueJ |
Questions Based on Logic & Calculation: |
1. Accept the value of A, B & C then calculate this formula. R = 6.5 (A + B)2 - 7.3 (B + C)1/2 (A + C)1/2 |
class ques1 { public static void main(String args[]) { int a = 2,b = 3,c = 4; double r; double x = 6.5*Math.pow((a+b),2); double y = 7.3*Math.sqrt(b+c); double z = Math.sqrt(a+c); r = (x-y)/z; System.out.println ("The answer is : "+r); } } |
2. WAP to calculate the Simple Interest. |
class ques2 { public static void main(String args[]) { int p = 5000; int r = 5; int t = 2; float si = (p*r*t)/100; System.out.println ("Simple intrest = "+si); } } |
3. Calculate the area and circumference of circle. |
class ques3 { public static void main(String args[]) { int r = 3; double a = 3.14*r*r; double c = 2*3.14*r; System.out.println ("Area of the Circle of radious "+r+" is : "+a); System.out.println ("Circumference : "+c); } } |
4. Calculate the area of a triangle. |
class ques4 { public static void main(String args[]) { int a = 2,b = 3,c = 4; double area; double s = (a+b+c)/2.0; area = Math.sqrt(s*(s-a)*(s-b)*(s-c))/(2*a*b); System.out.println ("Area of the Triangle"); System.out.println ("of sides "+a+","+b+","+c); System.out.println ("is : "+area); } } |
5. Write a program with supporting documentation to enter any three real numbers and calculate X where: X = Product of integer portion Sum of decimal portion |
class ques5 { public static void main(String args[]) { double n1 = 12.85,n2 = 7.19,n3 = 3.65; int i1 = (int) n1; int i2 = (int) n2; int i3 = (int) n3; double d1 = n1-i1; double d2 = n2-i2; double d3 = n3-i3; double x = (i1*i2*i3)/(d1+d2+d3); System.out.println ("The value of X is : "+x); } } |
Questions Based on Condition: |
6. WAP to check whether a number is divisible by 5 or not. |
class ques6 { public static void main(String args[]) { int n = 10; if(n%5 = = 0) System.out.println ("The number "+n+" is divisible by 5"); else System.out.println ("The number "+n+" is not divisible by 5"); } } |
7. Accept a numbers and check whether the number is divisible by both 2 and 3 or not. |
class ques7 { public static void main(String args[]) { int n = 10; if(n%2 = = 0 && n%3 = = 0) System.out.println ("The number "+n+" is divisible by 2 and 3"); else System.out.println ("The number "+n+" is not divisible by 2 and 3"); } } |
8. Write two separate programs to accept three numbers and find which one is greater (one using if statement and another using ternary operator). |
class ques8 { public static void main(int a,int b,int c) { int max = (a>b) ? ((a>c)?a:c) : ((b>c)?b:c); System.out.print ("The Highest Number is : "+max); } } |
9. Accept a numbers and find out the given number is divisible by 5 or not, if not then print the nearest number from the given number which is divisible by 5. |
class ques9 { public static void main(int n) { int r = n%5; if(r = = 0) System.out.println ("The number "+n+" is divisible by 5"); else if(r>2) System.out.println ("The nearest number is "+(n-r+5)); else System.out.println ("The nearest number is "+(n-r)); } } |
10. Write a program to input the basic salary of a person. He get 15% of the basic as HRA, 15% of the basic as Conveyance allowance and 10% of the basic as Entertainment allowance. The total salary is calculated by adding Basic + HRA + Conveyance + Entertainment Allowance. Calculate and print the total salary of person. |
class ques10 { public static void main(int basic) { double HRA = basic*.15; double conveyance = basic*.15; double entertainment = basic*.10; double totalSalary = basic + HRA + conveyance + entertainment; System.out.println ("Total Salary : "+totalSalary); } } |
11. A computer salesman gets commission on the following basis: Sales Commission Rate Rs. 0 - 20,000 3% Rs. 20,000 - 50,000 12% Rs. 50,001 and more 31% After accepting the sales as input, calculate and print his commission amount and rate of commission. |
class ques11 { public static void main(int sales) { int rate = 0; double commission = 0.0; if(sales< = 20000) { rate = 3; commission = sales*.03; } if(sales> = 20001 && sales< = 50000) { rate = 12; commission = sales*.12; } if(sales> = 50001) { rate = 31; commission = sales*.31; } System.out.println ("Commission Rate : "+rate+"%"); System.out.println ("Commission Amount : "+commission); } } |
12. Write a program to enter the three sides of a triangle. Decide whether it is a scalene, isosceles or equilateral triangle. |
public class ques12 { public static void main(String args[]) { int a = Integer.parseInt(args[0]); int b = Integer.parseInt(args[1]); int c = Integer.parseInt(args[2]); if (a = = b && b = = c && c = = a) System.out.println ("Equileteral Triangle"); else if (a! = b && b! = c && c! = a) System.out.println ("Scalean Triangle"); else System.out.println ("Isoceles Triangle"); } } |
13. A library charges fine for books returned late. Following are the fines: first five days 40 paisa per day, Six to ten days 65 paisa per day, above 10 days 80 paisa per day. Design a program to calculate the fine assuming that a book is returned N days late. |
class ques13 { public static void main(int Ndays) { double fineAmount = 0; if(Ndays< = 5) fineAmount = Ndays*.40; if(Ndays> = 6 && Ndays< = 10) fineAmount = Ndays*.65; if(Ndays>10) fineAmount = Ndays*.80; System.out.println ("FINE AMOUNT (Rs.) : "+fineAmount); } } |
14. The telephone department wishes to compute monthly telephone bills for its customers using the following rules. Minimum Rs. 250 for first
80 message units, plus 60 paise per unit for next 60 units, plus 50 paise per unit for next 60 units, plus 40 paise per unit for any units above
200. Write a program that calculates the monthly bill, with input MESSAGE (the number of message units) and CUSTNO (the registration number of a
customer). Then Display the bill in following format. CUSTOMER NO : MESSAGE UNITS : AMOUNT (Rs.) : |
class ques14 { public static void main(int messageUnit,int customerNo) { double bill = 0; if(messageUnit< = 80) bill = 250; else if(messageUnit>80 && messageUnit< = 140) bill = 250+(messageUnit-80)*0.60; else if(messageUnit>140 && messageUnit< = 200) bill = 250+36+(messageUnit-140)*0.50; else if(messageUnit>200) bill = 250+36+30+(messageUnit-200)*0.40; System.out.println ("CUSTOMER NUMBER : "+customerNo); System.out.println ("MESSAGE UNIT : "+messageUnit); System.out.println ("BILL AMOUNT : "+bill); } } |
15. A security man paid at the hourly rate (R) for the first 40 hours of work in a week. Thereafter, he is paid at 1.25 times of the hourly rate (R) for the next 16 hours and at 1.5 times of the hourly rate (R) for the further hours of work in the week. Taking the numbers of hours (H) and the rate per hour (R) as input, the weekly wages (W) is to be calculated. |
class ques15 { public static void main(int H,int R) { double W = 0; if(H< = 40) W = H*R; else if(H>40 && H< = 56) W = 40*R+(H-40)*R*1.25; else if(H>56) W = 40*R+16*R*1.25+(H-56)*R*1.5; System.out.print ("The Weekly Wages : "+W); } } |
16. Write a program to compute BI-monthly telephone charges for subscriber. Use the following information: Fixed BI-monthly rent: Rs.380 Free calls during two months: 120 Charge/call beyond free limits upto 100 calls: Rs.1 Charge per call in excess of 100 calls: Rs. 1.25 |
class ques16 { public static void main(int calls) { double bill = 280.0; if(calls>120 && calls< = 220) bill = bill+(calls-120)*1; else if(calls>220) bill = bill+100+(calls-220)*1.25; System.out.println ("BILL AMOUNT : "+bill); } } |
17. Write a program to input the code of a particular item, quantity purchased and rate. Then calculate the purchased price and print it along
with gift to be presented. The gifts to the customers are given in the following manner: Amount of Purchase (Rs.) Gift Between 100 to 500 A key ring Between 500 to 1000 A leather purse Above 1000 A pocket calculator |
class ques17 { public static void main(int code, int qty, double rate) { double price = qty*rate; System.out.println ("Purchase Price : "+price); if(price> = 100 && price< = 500) System.out.println ("Gift item : Key Ring"); if(price>500 && price< = 1000) System.out.println ("Gift item : Leather Purse"); if(price>1000) System.out.println ("Gift item : Pocket Calculator"); } } |
Some Questions on multiple IF condition |
Q. Write a program to take the monthly salary from the user, find and
display income tax with the help of the following slab: Monthly Salary Income Tax 8000 or less Nil 8000-9000 20% of Monthly salary 9000-10000 30% of Monthly salary 10000 or above 40% of Monthly salary |
Q. A salesman earns a commission on the value of his sales as per the
following table. Value of sales(Rs.) Commission(%) 1 - 999 1 1000 - 9999 5 10000 - 99999 10 Write a program to calculate and print the commission using sale value as input. The program is to keep on calculating the commission for various salesmen until a sales value zero is input. |
Q. A company wants to set target for each of the four regions (EAST,
WEST , NORTH and SOUTH). The company allots the following percentage
target for each region. East 15% West 25% North 30% South 30% Write a program to pass through command line parameters, the total target amount proposed by the company and print out the breakup of the target for each region. |
Q. Write a program to find the car bill for a particular tourist. Type of car Distance Charge Driver. Maruti < = 100 Rs.800 Rs.100. >100 & < = 200 Rs.800+Rs10/km Rs 300. above 100 >200 Rs.15per km Rs 500 Sumo < = 100 Rs.600 Rs 100. >100 & < = 200 Rs.600+Rs.8/km Rs 300 above 100 > 200 Rs.12 per km Rs.500 |
Q. Write a program using method to calculate the salary increment of
employees based on their basic pay. Calculate the final salary after
increment. Basic Pay Rise 10700/- 550/- 12500/- 750/- 15000/- 1050/- |
Q. Write a program using the this keyword, to calculate the prize amount
for a cricketer depending upon his text average. Use the following date. Test Average Graduate Prize Amount > = 80 A Rs. 1,00,000.00 80> & > = 65 B Rs. 50,000.00 50> & > = 40 C Rs. 25,000.00 <40 D Rs. 10,000.00 |
Q. Using if-else statements write a program in java to calculate the
grade as per the given criteria: Marks Grade > = 80 and <100 Excellent > = 70 and <80 First Div. > = 60 and <70 Second Div. > = 50 and <60 Third Div. Less than 50 Fail |
Q. Write a program to assign values the variable basic salary and
calculate the DA and the gross salary and print them. The DA is calculated
as per the rules given below: if basic< 2000 then DA is 5% of basic if basic> = 2000 & <7000 then DA is 8% of basic if basic> = 7000& <10000 then DA is 10% of basic if basic> = 10000 then DA is 12% of basic Gross Salary = Basic + DA. |
Q. There are 55 employees in an organization. You have to display the
number of employees getting Net-Salary above 20000 by taking only
Basic_Salary as input and following the table given below. Basic Salary DA (% Basic_salary) IT (% Gross_Salary) Below 5000 8% 6% 5000 to < 10000 15% 9% 10000and above 18% 12% Where DA and IT are Dearness Allowance and income Tax respectively. Gross_Salary = Basic_Salary + DA Net_Salary = Gross_Salary - IT |
Q. Calculate and display the traveling allowance for 50 employees of an
organization by taking distance traveled as input. The organization gives
traveling allowance according to the following table. Distance Amount. < = 20 Rs 200 >20 and < = 50 Rs 200 + Rs 5 per extra km above 20 >50 and < = 100 Rs 500 + Rs 5 per extra km above 50. >100 Rs 15 per km. |
Q. Commission according to the following tables:
Sale (in Rs.)
Commission(% of sale) |
Q. A company has 120 employees who are divided into four grades as
follows: Grade Basic( Rs. per month) D.A.(% of Basic) H.R.A.(% of Basic) 1 10,000 or more 40% 30% 2 5,000 - 10,000 40% 25% 3 < 5,000 but > 2,000 30% 20% 4 2,000 or less 30% 15% If the salary which is the total of Basic, D.A., and H.R.A., is above Rs.50,000 per month then Income Tax at the rate of 30% of the annual salary exceeding 50,000 is deducted on monthly basis at source. Taking name of the employees and the Basic(monthly) pay as inputs, a pay slip, which contains Name, Basic monthly pay, DA, HRA, Monthly Income Tax and Net Monthly Salary, for each employee is to be printed. Write a java program to perform this job. |
Q. Define class calcComm with member variables:
sales, commission method: void acceptsales() to accept sales value float commAmt() to calculate and return commission amount. the commission will be calculated according to the following criteria sales commission rate above or equal to 5000 15% above or equal to 3000 but below 5000 10% above or equal to 1000 but below 3000 5% below 1000 2% |
Q. Define class calculateBill having member variable:
calls, charge Member methods: void calCharge(int type) to calculate the telephone bill. Type is type of connection 1. For domestic 2. For business Bill will be calculated according to the following rule- Monthly rent - Rs. 450 Number of call free - 100 Next 150 calls - Rs. 1/call Next 100 calls - Rs. 1.50/call Extra calls - Rs. 2/call for business type connection Rs 50/- will be paid extra by the customer void display() to show the bill amount Write main program to accept no. of calls and display menu 1. Domestic Connection 2. Business Connection Enter Your Choice (1 or 2) Bill will be calculated according to the option entered by the user and then finally display the bill. |
Q. Write a program to calculate monthly telephone bill for a consumer
after accept number of call according to given criteria. Monthly rent Rs 400/- No. of free calls 100 for next 150 calls Rs. 1.25/call for extra calls Rs. 1.50/call |
Q. Write a program to input the sales or any 20 sales men. Calculate and
print the commission with an added allowance of Rs. 500. The commission
can be calculated by using the following table:- Sales Commission Upto 5000 nil 5001-8000 10% 8001-10,000 12% 10,001 Or more 15% |
Q. Write a Java program to accept an amount from the user and hence find in each case:- a) No of Rs. 100 notes and the remainder amount. b) No of Rs. 50 notes and the remainder amount. c) No of Rs. 20 notes and the remainder amount. d) No of Rs. 10 notes and the remainder amount. Eg. In Rs. 542; No of Rs. 100 = 5, Remainder = Rs. 42 No of Rs. 50 = 10, Remainder = Rs. 42 No of Rs. 20 = 27, Remainder = Rs. 2. No of Rs. 10 = 54, Remainder = Rs. 2. |
Q. A class namely student has three data member Name, roll and Marks of
5 Subjects the steam is assigned based on the following criteria : Avg. Marks Stream 90% and above science with computers 80% ___89% science without Computers 70%____79% commerce with Maths 60%___69% commerce without Maths Write a program to declare a class student and allot the stream and print them. |
Q. ABC stand decided to take charge for the parking of 2wheeler,
3wheeler and 4wheller (same charges) as per the following criteria: No. of Hrs. Parked Charge upto 8 hrs Rs 10 next 8 hrs Rs. 6 for additional 8 hours above 16 hours Rs. 5 for each addition 8 hrs. Input number of hours parked and prints the charges as per given criteria. |
Questions Based on Loops or Nested Loops |
18. Display the first ten natural numbers (using for, while and do-while loop). |
19. Display the first ten odd numbers and the sum of them. |
20. Write a program to Display the table of given number. |
21. The present population of a country is PO and it increases by 5% every year. The population (P) after n years is given by the formula: P = PO (1.05)n. Write a program to find the population every year for the next ten years. |
22. Generate the following series |
(a) 1 2 4 7 11 16 22 |
class ques22a { public static void main(String args[]) { int s = 1; for(int i = 1;i< = 7;i++) { System.out.print (s+" "); s = s+i; } } } |
(b) 0 1 3 6 10 15 21 |
class ques22b { public static void main(String args[]) { int s = 0; for(int i = 1;i< = 7;i++) { System.out.print (s+" "); s = s+i; } } } |
(c) 0 3 8 15 24 35 |
class ques22c { public static void main(String args[]) { for(int i = 1;i< = 6;i++) System.out.print ((int) Math.pow(i,2)-1 + " "); } } |
(d) 0 1 1 2 3 5 8 13 (fibonacci series) |
class ques22d { public static void main(String args[]) { int a = 0,b = 1,c,i; for(i = 1;i< = 8;i++) { System.out.print (a+" "); c = a+b; a = b; b = c; } } } |
(e) 1 2 2 4 8 32 |
class ques22e { public static void main(String args[]) { int a = 1,b = 2,c,i; for(i = 1;i< = 6;i++) { System.out.print (a+" "); c = a*b; a = b; b = c; } } } |
(f) 2 3 4 6 6 9 8 12 10 15 |
class ques22f { public static void main(String args[]) { for(int i = 1;i< = 5;i++) System.out.print ((i*2)+" "+(i*3)+" "); } } |
(g) 1 5 2 4 3 3 4 2 5 1 |
class ques22g { public static void main(String args[]) { int i; int a = 1,b = 5; for(i = 1;i< = 5;i++) { System.out.println (a+" "); System.out.println (b+" "); a++; b--; } } } |
(h) 0 7 26 63 124 |
class ques22h { public static void main(String args[]) { int n; for(int i = 1;i< = 5;i++) { n = ((int) Math.pow(i,3)) - 1; System.out.print (n+" "); } } } |
23. Calculate the Sum of given series |
(a) S = 1 + 2 - 3 + 4 - 5 + 6 - 7 + 8 - 9 + ……………… + Nth |
(b) S = (X+1)2+(X+2)3+(X+3)4+(X+4)5+…………… +(X+N)N+1 |
(c) S = (1+2) + (1+2+3) + (1+2+3+4) + ………… + (1+…………+15) |
(d) S = 1 + X + 2!X2 + 3!X3 + 4!X4 |
(e) S = X2 + X3 + X4 + X5 + X6
2! 3! 4! 5! 6! |
(f) S = 1x2 + 2x3 + 3x4 + 4x5 + ... + 19x20 |
Typical Logical Questions: |
24. WAP to display the factorial of the first ten natural numbers. |
class ques24 { public static void main(String args[]) { int f = 1; for(int i = 1;i< = 10;i++) { f = f*i; System.out.println ("The factorial of number "+i+" is "+f); } } } |
25. Write a program to print all the factors of a number. |
class ques25 { public static void main(String args[]) { int n = Integer.parseInt(args[0]); System.out.println ("The all Factors of given no. "+n+" is"); for(int i = 1;i< = n;i++) { if(n%i = = 0) System.out.println (i); } } } |
26. WAP to accept a number and check whether the number is perfect number or not. A number is called perfect number, if the sum of all factors (except number itself) of the number is equal to that number. (For e.g. 6 is a perfect number. Factors are 1, 2 & 3 and the sum is 1+2+3 = 6.) |
class ques26 { public static void main(String args[]) { int i,s = 0; int n = Integer.parseInt(args[0]); for(i = 1;i<n;i++) { if(n%i = = 0) s = s+i; } if(n = = s) System.out.println ("The given no. "+n+" is a Perfect no"); else System.out.println ("The given no. "+n+" is not a Perfect no"); } } |
27. WAP to generate all Perfect numbers up to 1000. |
class ques27 { public static void main(String args[]) { int i,s,n; System.out.println ("The Perfect nos between 1 to 1000 are "); for(n = 1;n< = 1000;n++) { s = 0; for(i = 1;i<n;i++) { if(n%i = = 0) s = s+i; } if(n = = s) System.out.println (n); } } } |
28. Write a program to accept a number, check whether the numbers is prime number or not. If number is prime, then display "PRIME NUMBER" or display "NOT A PRIME NUMBER". |
class ques28 { public static void main(String args[]) { int i,f = 0; int n = Integer.parseInt(args[0]); for(i = 2;i<n;i++) { if(n%i = = 0) { f = 1; break; } } if(f = = 0) System.out.print ("The given no. "+n+" is a prime number"); else System.out.print ("The given no. "+n+" is not a prime number"); } } |
29. Write a program to display all prime numbers between 100 to 200. |
class ques29 { public static void main(String args[]) { int i,f,n; System.out.print ("The Prime nos between 100 to 200 are : "); for(n = 100;n< = 200;n++) { f = 0; for(i = 2;i<n;i++) { if(n%i = = 0) { f = 1; break; } } if(f = = 0) System.out.print (n+" "); } } } |
30. The production (P) of crude oil of a country in millions of barrel may be estimated by the following set of equations, where t represent the times in years. P = 5+3t, for 0< = t< = 3 and P = 14+(T-5/2)^2, for t>3, Write a program to print the quantity of production for every year from t = 1 to 10. |
31. Write a program to accept a number then print the sum of digits and number of digits present in it. (E.g. If the input number is 225, the sum of digits is 9 and number of digits is 3). |
class ques31 { public static void main(int n) { int s = 0,c = 0,d; while(n>0) { d = n%10; s = s+d; c = c+1; n = n/10; } System.out.println ("Sum of digits : "+s); System.out.println ("no. of digits : "+c); } } |
32. Write a program to accept a number then print the number in reverse order. (E.g. If the input number is 245, the output will be 542) |
class ques32 { public static void main(int number) { int reverseNumber = 0, digit; while(number>0) { digit = number%10; reverseNumber = reverseNumber*10+digit; number = number/10; } System.out.println ("Reverse Number is : " +reverseNumber); } } |
33. Write a program to check whether a number is palindrome number or not. (Palindrome means, If the reverse of the number is same of original number) |
class ques33 { public static void main(int number) { int reverseNumber = 0, orgNumber = number, digit; while(number>0) { digit = number%10; reverseNumber = reverseNumber*10+digit; number = number/10; } if(orgNumber = = reverseNumber) System.out.println ("Number is Palindrom"); else System.out.println ("Number is not Palindrom"); } } |
34. A number is called Armstrong number if the sum of cube of each digit of the number is equal to that number. Write a program to accept a number then check whether the given number is Armstrong number or not. (E.g. 153 is a Armstrong number because 153 = 13 + 53 +33). |
class ques34 { public static void main(int number) { double sum = 0; int orgNumber = number, digit; while(number>0) { digit = number%10; sum = sum+Math.pow(digit,3); number = number/10; } if(orgNumber = = sum) System.out.println ("Number is Armstrong"); else System.out.println ("Number is not Armstrong"); } } |
35. Write a program to display all three digits Armstrong number. |
class ques35 { public static void main() { int sum; int n, digit; for(int number = 100;number< = 999;number++) { sum = 0; n = number; while(n>0) { digit = n%10; sum = sum+(digit*digit*digit); n = n/10; } if(number = = sum) System.out.println ("Armstrong Number is "+number); } } } |
36. Write a program to check whether all digits of the given number are same type or not (i.e. all are odd, all even numbers or both present) |
37. Write a program to accept a number and then add all digits until you found a single digit number. If that single digit number is 1, then that number is called lucky number. (e.g. if number is 2345 then sum of its digits becomes 14, further sum of this digits is 5, so the number is not a lucky number) |
class ques37 { public static void main(int number) { int sum, digit; while(number>9) { sum = 0; while(number>0) { digit = number%10; sum = sum+digit; number = number/10; } number = sum; } if(number = = 1) System.out.println ("Lucky Number"); else System.out.println ("Not Lucky Number"); } } |
38. Display the following Design Using Nested Loops: |
*
*** ***** ******* ***** *** * |
class ast1 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = 1;j< = 40-i;j++) System.out.print (" "); for(j = 1;j< = i*2-1;j++) System.out.print ("*"); System.out.println (); } for(i = 4;i> = 1;i--) { for(j = 1;j< = 40-i;j++) System.out.print (" "); for(j = 1;j< = i*2-1;j++) System.out.print ("*"); System.out.println (); } } } |
*
*+* *+++* *+++++* *+++++++* *+++++* *+++* *+* * |
class ast2 { public static void main(String args[]) { int i,j,p = 40; for(i = 1;i< = 5;i++,p--) { for(j = 1;j< = p;j++) System.out.print (" "); for(j = 1;j< = i*2-1;j++) { if(j = = 1 || j = = i*2-1) System.out.print ("*"); else System.out.print ("+"); } System.out.println (); } p = p+2; for(i = 4;i> = 1;i--,p++) { for(j = 1;j< = p;j++) System.out.print (" "); for(j = 1;j< = i*2-1;j++) { if(j = = 1 || j = = i*2-1) System.out.print ("*"); else System.out.ࡰrint("+"); } System.out.println (); } } } |
*
*** ***** ******* |
class ast3 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = 1;j< = 40-i;j++) System.out.print (" "); for(j = 1;j< = i*2-1;j++) System.out.print ("*"); System.out.println (""); } } } |
*
*** ***** ******* * * * * * |
class ast4 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = 1;j< = 40-i;j++) System.out.print (" "); for(j = 1;j< = i*2-1;j++) System.out.print ("*"); System.out.println (""); } for(i = 4;i> = 1;i--) { for(j = 1;j< = 40-i;j++) System.out.print (" "); for(j = 1;j< = i*2-1;j++) { if(j = = 1 || j = = i*2-1) System.out.print ("*"); else System.out.print (" "); } System.out.println (""); } } } |
*
* * * * * * * * * * * |
class ast5 { public static void main(String args[]) { int i,j,p = 40; for(i = 1;i< = 5;i++,p--) { for(j = 1;j< = p;j++) System.out.print (" "); for(j = 1;j< = i*2-1;j++) { if(j = = 1 || j = = i*2-1) System.out.print ("*"); else System.out.print (" "); } System.out.println (); } p = p+2; for(i = 4;i> = 1;i--,p++) { for(j = 1;j< = p;j++) System.out.print (" "); for(j = 1;j< = i*2-1;j++) { if(j = = 1 || j = = i*2-1) System.out.print ("*"); else System.out.print (" "); } System.out.println (); } } } |
W
WE WEL WELC WELCO WELCOM WELCOME |
class pro { public static void main(String args[]) { String x = "WELCOME"; int i,j; int l = x.length(); for(i = 0;i< = l;i++) { for(j = 0;j<i;j++) System.out.print (x.charAt(j)); System.out.println (); } } } |
A Am Ami Amit Amita Amitab Amitabh |
class amitabh { public static void main(String args[]) { String x = "Amitabh"; int i,j; for(i = 0;i< = x.length();i++) { for(j = 0;j<i;j++) System.out.print (x.charAt(j)); System.out.println (); } } } |
A
BB CCC DDDD EEEEEE |
class alpha1 { public static void main(String args[]) { int i,j,a = 65; for(i = 1;i< = 5;i++,a++) { for(j = 1;j< = i;j++) System.out.print ((char)a); System.out.println (); } } } |
A
AB ABC ABCD ABCDE |
class alpha2 { public static void main(String args[]) { int i,j,a; for(i = 1;i< = 5;i++) { a = 64; for(j = 1;j< = i;j++) System.out.print ((char)(a+j)); System.out.println (); } } } |
1111
2222 3333 4444 |
class pyr1 { public static void main(String args[]) { int i,j; for(i = 1;i< = 4;i++) { for(j = 1;j< = 4;j++) System.out.print (i); System.out.println (); } } } |
0
12 345 6789 |
class pyr2 { public static void main(String args[]) { int i,j,a = 0; for(i = 1;i< = 4;i++) { for(j = 1;j< = i;j++) { System.out.print (a); a++; } System.out.println (); } } } |
1
12 123 1234 12345 |
class pyr3 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = 1;j< = i;j++) { System.out.print (j); } System.out.println (); } } } |
1
21 321 4321 54321 |
class pyr4 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = i;j> = 1;j--) { System.out.print (j); } System.out.println (); } } } |
55555
4444 333 22 1 |
class pyr5 { public static void main(String args[]) { int i,j; for(i = 5;i> = 1;i--) { for(j = i;j> = 1;j--) System.out.print (i); System.out.println (); } } } |
1
22 333 4444 55555 |
class pyr6 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = 1;j< = i;j++) System.out.print (i); System.out.println (); } } } |
54321
5432 543 54 5 |
class pyr7 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = 5;j> = i;j--) System.out.print (j); System.out.println (); } } } |
54321
4321 321 21 1 |
class pyr8 { public static void main(String args[]) { int i,j; for(i = 5;i> = 1;i--) { for(j = i;j> = 1;j--) System.out.print (j); System.out.println (); } } } |
12345
1234 123 12 1 |
class pyr9 { public static void main(String args[]) { int i,j; for(i = 5;i> = 1;i--) { for(j = 1;j< = i;j++) System.out.print (j); System.out.println (); } } } |
12345
2345 345 45 5 |
class pyr10 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = i;j< = 5;j++) System.out.print (j); System.out.println (); } } } |
5
45 345 2345 12345 |
class pyr11 { public static void main(String args[]) { int i,j; for(i = 5;i> = 1;i--) { for(j = i;j< = 5;j++) { System.out.print (j); } System.out.println (); } } } |
5
54 543 5432 54321 |
class pyr12 { public static void main(String args[]) { int i,j; for(i = 5;i> = 1;i--) { for(j = 5;j> = i;j--) System.out.print (j); System.out.println (); } } } |
1
212 32123 4321234 543212345 |
class pyr13 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = 1;j< = 5-i;j++) System.out.print (" "); for(j = i;j> = 1;j--) System.out.print (j); for(j = 2;j< = i;j++) System.out.print (j); System.out.println (); } } } |
1
121 12321 1234321 123454321 |
class pyr14 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = 1;j< = 5-i;j++) System.out.print (" "); for(j = 1;j< = i;j++) System.out.print (j); for(j = i-1;j> = 1;j--) System.out.print (j); System.out.println (); } } } |
1
232 34543 4567654 567898765 67890109876 7890123210987 890123454321098 90123456765432109 |
class pyr15 { public static void main(String args[]) { int i,j; for(i = 1;i< = 9;i++) { for(j = 1;j< = 40-i;j++) System.out.print (" "); for(j = i;j< = (i*2)-1;j++) System.out.print (j%10); for(j = (i-1)*2;j> = i;j--) System.out.print (j%10); System.out.println (); } } } |
1
010 10101 0101010 101010101 |
class pyr16 { public static void main(String args[]) { int i,j,a; for(i = 1;i< = 5;i++) { for(j = 1;j< = 40-i;j++) System.out.print (" "); a = i; for(j = 1;j< = i*2-1;j++,a++) System.out.print (a%2); System.out.println (); } } } |
1
123 12345 1234567 123456789 |
class pyr17 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = 1;j< = 5-i;j++) System.out.print (" "); for(j = 1;j< = (i*2-1);j++) System.out.print (j); System.out.println (); } } } |
1
222 33333 4444444 555555555 |
class pyr18 { public static void main(String args[]) { int i,j; for(i = 1;i< = 5;i++) { for(j = 1;j< = 5-i;j++) System.out.print (" "); for(j = 1;j< = (i*2-1);j++) System.out.print (i); System.out.println (); } } } |
1 1
222 222 33333 33333 44444444444444 |
class pyr19 { public static void main(String args[]) { int i,j; for(i = 1;i< = 4;i++) { for(j = 1;j< = 5-i;j++) System.out.print (" "); for(j = 1;j< = (i*2-1);j++) System.out.print (i); for(j = 1;j< = (4-i)*2;j++) System.out.print (" "); for(j = 1;j< = (i*2-1);j++) System.out.print (i); System.out.println (); } } } |