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hirenjogiya's picture

Calculate difference in days between two dates

Submitted by hirenjogiya on Mon, 12/20/2010 - 17:13
2
Your rating: None Average: 2 (2 votes)
  1. /*
  2.   Java difference between dates example shows how to
  3.   calculate difference between two dates using Java
  4.   Calendar object.
  5.  */
  6. import java.util.Calendar;
  7.  
  8. public class DateDifferenceExample{
  9.  
  10.         public static void main(String[] args){
  11.        
  12.         //get instance of Calendar objects
  13.         Calendar cal1 = Calendar.getInstance();
  14.         Calendar cal2 = Calendar.getInstance();
  15.        
  16.         //set two dates w
»
Deepthi's picture

Java Sort ArrayList

Submitted by Deepthi on Sat, 11/13/2010 - 18:50
3
Your rating: None Average: 3 (15 votes)
This Java Sort ArrayList example shows how to Sort an ArrayList in Java.
  1. import java.util.ArrayList;
  2. import java.util.Collections;
  3.  
  4. //Java Sort ArrayList
  5.  
  6. public class JavaSortArrayList {
  7.    
  8.     public static void main(String args){
  9.        
  10.         //create new ArrayList
  11.         ArrayList<Integer> aListNumbers = new ArrayList<Integer>();
  12.         aListNumbers.add(23
»
Deepthi's picture

Java Reverse ArrayList

Submitted by Deepthi on Sat, 11/13/2010 - 18:48
5
Your rating: None Average: 5 (1 vote)
This Java ArrayList Reverse example shows how to reverse elements of Java ArrayList.
  1. import java.util.ArrayList;
  2.  
  3. //Java Reverse ArrayList
  4.  
  5. /*
  6.  * This Java Reverse ArrayList shows how to reverse ArrayList without using new
  7.  * ArrayList object.
  8.  */
  9. public class JavaReverseArrayList {
  10.    
  11.     public static void main(String args[]){
  12.        
  13.         //create new ArrayList
  14.        
»
Deepthi's picture

Java ArrayList Clear or Remove All Elements

Submitted by Deepthi on Sat, 11/13/2010 - 18:46
2.4
Your rating: None Average: 2.4 (10 votes)
This Java ArrayList Clear or Remove all elements example shows how to remove all elements from an ArrayList using clear method.
  1. import java.util.ArrayList;
  2.  
  3. //Java ArrayList Clear or Remove All Elements
  4.  
  5. public class JavaClearArrayList {
  6.     public static void main(String args[]){
  7.        
  8.         //create new ArrayList
  9.         ArrayList<String> alistNumbers = new ArrayList&lt
»
Deepthi's picture

Java Convert Collection to ArrayList

Submitted by Deepthi on Sat, 11/13/2010 - 18:38
3
Your rating: None Average: 3 (2 votes)
This Java convert Collection to ArrayList example shows how to convert any collection to ArrayList.
  1. import java.util.ArrayList;
  2. import java.util.HashSet;
  3.  
  4. //Java Convert Collection to ArrayList
  5.  
  6. public class ConverCollectionToArrayList {
  7.    
  8.     public static void main(String args[]){
  9.        
  10.         //Create new HashSet
  11.         HashSet<String> hashSetColors = new HashSet&
»
Deepthi's picture

Java LinkedList to ArrayList

Submitted by Deepthi on Sat, 11/13/2010 - 18:36
0
Your rating: None
This Java LinkedList to ArrayList example shows how to convert LinkedList to ArrayList in Java.
  1. import java.util.ArrayList;
  2. import java.util.LinkedList;
  3.  
  4. //Java LinkedList to ArrayList
  5.  
  6. public class ConvertLinkedListToArrayList {
  7.  
  8.     public static void main(String args[]){
  9.        
  10.         //create new LinkedList object
  11.         LinkedList<String> linkedListColors = new Link
»
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.          
»
Deepthi's picture

Java Synchronized ArrayList

Submitted by Deepthi on Sat, 11/13/2010 - 18:29
0
Your rating: None
By default, ArrayList object is not synchronized. This Java example shows how to get Synchronized ArrayList.
  1. import java.util.ArrayList;
  2. import java.util.Collections;
  3.  
  4. //Java Synchronized ArrayList
  5.  
  6. public class JavaSynchronizedArrayList {
  7.    
  8.     public static void main(String args[]){
  9.        
  10.         /*
  11.          * By default, ArrayList object is not synchronized.
»
Sameera's picture

Java ArrayList Copy

Submitted by Sameera on Fri, 11/12/2010 - 19:53
4
Your rating: None Average: 4 (1 vote)
  1. import java.util.ArrayList;
  2. import java.util.Collections;
  3.  
  4. //Java ArrayList Copy
  5.  
  6. /*
  7.  * This Java ArrayList copy example shows how to copy one ArrayList
  8.  * to another using copy method of Collections class.
  9.  */
  10. public class JavaArrayListCopy {
  11.    
  12.     public static void main(String args[]){
  13.        
  14.         ArrayList<String> alistNumbers = new ArrayList<String>();
»
Sameera's picture

Java ArrayList to Set

Submitted by Sameera on Fri, 11/12/2010 - 19:51
5
Your rating: None Average: 5 (2 votes)
  1. import java.util.ArrayList;
  2. import java.util.HashSet;
  3.  
  4. //Java ArrayList to Set
  5.  
  6. /*
  7.  * This Java ArrayList to Set example shows how to convert Java ArrayList to set
  8.  * like HashSet.
  9.  */
  10.  
  11. public class JavaArrayListToSet {
  12.     public static void main(String args[]){
  13.        
  14.         ArrayList<String> alistNumbers = new ArrayList<String>();
  15.         alistNumbers.add(&quo
»
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