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Student Exercise
Small Java programming exercises and tutorials for students.
Deepthi's picture

Java Reverse Array

Submitted by Deepthi on Sat, 11/13/2010 - 18:34
3.25
Your rating: None Average: 3.3 (4 votes)
Write a Java program to reverse an array without creating another array.
  1. //Java Reverse Array
  2. public class JavaReverseArray {
  3.    
  4.     public static void main(String args[]){
  5.        
  6.         //declare an array
  7.         int[] numbers = {1,2,3,4,5};
  8.        
  9.         System.out.println("Java array before reverse");
  10.         for(int i=0; i < numbers.length ; i++){
  11.          
»
Ragi Patel's picture

Java ArrayList Average Of All Elements

Submitted by Ragi Patel on Thu, 11/11/2010 - 15:26
2.333335
Your rating: None Average: 2.3 (3 votes)
Calculate average of all elements of an ArrayList
  1. //Java ArrayList Average Of All Elements
  2.  
  3. import java.util.ArrayList;
  4.  
  5. public class AverageArrayListElements {
  6.    
  7.     public static void main(String args[]){
  8.        
  9.         //create new ArrayList
  10.         ArrayList<String> aListNumbers = new ArrayList<String>();
  11.         aListNumbers.add("1"
»
Ragi Patel's picture

Java ArrayList Sum Elements

Submitted by Ragi Patel on Thu, 11/11/2010 - 14:45
0
Your rating: None
Calculate sum of all elements of an ArrayList.
  1. import java.util.ArrayList;
  2.  
  3. //Java ArrayList Sum All Elements
  4. public class ArrayListSumElements {
  5.    
  6.     public static void main(String args[]){
  7.        
  8.         //create new ArrayList
  9.         ArrayList<String> aListNumbers = new ArrayList<String>();
  10.         aListNumbers.add("1");
  11.         aLis
»
zarina's picture

Write a program to generate following pattern using for loop and if statement

Submitted by zarina on Mon, 09/13/2010 - 18:44
5
Your rating: None Average: 5 (2 votes)
  1. /*
  2.     Write a program to generate following pattern using for loop and
  3.     if statement.
  4.    
  5.     1
  6.     22
  7.     333
  8.     4444
  9.     55555
  10.     6666
  11.     777
  12.     88
  13.     9
  14. */
  15. public class iffor{
  16.    
  17.     public static void main(String args[]){
  18.    
  19.         for (int x=1; x<=9; x++){
  20.    
  21.           if(x<=5){
  22.              
  23.               for(int y=1; y<=x; y++){
  24.        
»
zarina's picture

Java Number Diagonal using For Loop

Submitted by zarina on Mon, 09/13/2010 - 18:27
3
Your rating: None Average: 3 (2 votes)
  1. /*
  2.     Write a program to output the following pattern using for loop.
  3.   1
  4.     2
  5.      3
  6.        4
  7.          5
  8. */
  9.  
  10. public class Diagonal {
  11.  
  12.     public static void main (String[]args) {
  13.  
  14.           for (int x=1; x<=5; x++){
  15.                for (int y=1; y<=x; y++){
  16.                  System.out.print("");
  17.                }
  18.                System.out.println(x);
  19.      
»
Rahul's picture

Write a program to calculate Cylinder area

Submitted by Rahul on Mon, 09/13/2010 - 13:40
5
Your rating: None Average: 5 (2 votes)
  1. /*
  2.  * Write a program to calculate Cylinder area.
»
Rahul's picture

Write a program to calculate Circle area

Submitted by Rahul on Mon, 09/13/2010 - 13:39
1.666665
Your rating: None Average: 1.7 (3 votes)
  1. /*
  2.  * Write a program to calculate Circle area.
»
Rahul's picture

Write a program to calculate square area

Submitted by Rahul on Mon, 09/13/2010 - 13:37
5
Your rating: None Average: 5 (2 votes)
  1. /*
  2.  * Write a program to calculate square area.
»
Deepali's picture

Write a program to generate following pyramid pattern

Submitted by Deepali on Mon, 09/06/2010 - 17:05
2
Your rating: None Average: 2 (1 vote)
  1. /*
  2.    Write a program to generate following pyramid pattern.
»
Deepali's picture

Write a program to generate following pyramid pattern

Submitted by Deepali on Mon, 09/06/2010 - 17:04
5
Your rating: None Average: 5 (2 votes)
  1. /*
  2.    Write a program to generate following pyramid pattern.
»
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