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Java ArrayList to Array

Submitted by Ragi Patel on Thu, 11/11/2010 - 15:38
0
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This small Java example shows how to convert ArrayList to array using toArray method of Java ArrayList class.
  1. import java.util.ArrayList;
  2.  
  3. //Java ArrayList to Array using toArray method
  4. public class JavaArrayListToArray {
  5.  
  6.     public static void main(String args[]){
  7.        
  8.         //create new ArrayList
  9.         ArrayList<String> aListColors = new ArrayList<String>();
»
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Java ArrayList Size

Submitted by Ragi Patel on Thu, 11/11/2010 - 15:31
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This small Java examples shows how to get Java ArrayList size.
  1. import java.util.ArrayList;
  2.  
  3. //Java ArrayList size
  4. public class JavaArrayListSize {
  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.         aListNumbers.add(&qu
»
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Java ArrayList Remove Element

Submitted by Ragi Patel on Thu, 11/11/2010 - 15:29
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This small Java Example shows how to remove element from ArrayList object.
  1. //Java ArrayList Remove
  2.  
  3. import java.util.ArrayList;
  4.  
  5. public class JavaArrayListRemove {
  6.     public static void main(String args[]){
  7.        
  8.         //create new ArrayList
  9.         ArrayList<String> aListColors = new ArrayList<String>();
  10.         aListColors.add("Red");
  11.         aListCol
»
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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"
»
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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
»
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Write a program to calculate rectangle area.

Submitted by Ragi Patel on Fri, 08/27/2010 - 15:12
1.666665
Your rating: None Average: 1.7 (3 votes)
  1. /*
  2.  * Write a program to calculate rectangle area. Program should have class called
  3.  * Rectangle with length and width as member variables and getArea member method.
  4.  * getArea method should print area of the rectangle object.
  5.  */
  6. class Rectangle{
  7.  
  8.  int l, w;
  9.  
  10.  void setData(int x, int y){
  11.   l = x;
  12.   w = y;
  13.  }
  14.  
  15.  void getArea(){
  16.  
»
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Simple Interest Calculation in Java

Submitted by Ragi Patel on Fri, 08/27/2010 - 15:06
3
Your rating: None Average: 3 (1 vote)
  1. /*
  2.  * Simple Interest Calculation in Java
  3.  */
  4. import java.io.*;
  5.  
  6. class SimpleInterestCalculation{
  7.  
  8.  public static void main(String s[]){
  9.  
  10.   float p=0f;
  11.   float r=0f;
  12.   int n=0;
  13.   float si = 0.0f;
  14.  
  15.   String s1;
  16.   DataInputStream d1 = new DataInputStream(System.in);
  17.  
  18.   try{
  19.    
  20.     System.out.print("Enter Principal Amount: ");
  21.    s1 = d1.readLine();
»
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