Java array List

Compare Two Java long Arrays

import java.util.Arrays;

public class CompareLongArraysExample

{

public static void main(String[] args)

{

long[] longArray1 = new long[]{213873,87210,320918};

long[] longArray2 = new long[]{213873,87210,320918};

boolean blnResult = Arrays.equals(longArray1,longArray2);  System.out.println("Are two long arrays equal ? : " + blnResult);

   }

}

Compare Two Java short Arrays

import java.util.Arrays;

 public class CompareShortArraysExample

{

public static void main(String[] args)

{

short[] shortArray1 = new short[]{107,93,58};

short[] shortArray2 = new short[]{107,93,58};

boolean blnResult = Arrays.equals(shortArray1,shortArray2);

System.out.println("Are two short arrays equal ? : " + blnResult);

   }

}

Create List from Java Object Array

import java.util.Arrays;

import java.util.List;

import java.util.Iterator;

public class CreateListFromObjectArrayExample

{

public static void main(String[] args)

{

String[] strArray = new String[]{"Object","Array","Converted","To","List"};List list = Arrays.asList(strArray);

Iterator itr = list.iterator();

System.out.println("List created from an Array of type Object contains,");

while(itr.hasNext())

System.out.println(itr.next());

   }

}

Copy Elements of Array List to Java Vector

import java.util.ArrayList;

import java.util.Collections;

import java.util.Vector;

public class CopyElementsOfArrayListToVectorExample

{

 public static void main(String[] args)

{

ArrayList arrayList = new ArrayList();

arrayList.add("1");

arrayList.add("4");

arrayList.add("2");

arrayList.add("5");

arrayList.add("3");

Vector v = new Vector();

v.add("A");

v.add("B");

v.add("D");

v.add("E");

v.add("F");

v.add("G");

v.add("H");

System.out.println("Before copy, Vector Contains : " + v);

Collections.copy(v,arrayList);     

System.out.println("After Copy, Vector Contains : " + v);  

}

}

Copy Elements of One Java ArrayList to Another Java Array List

import java.util.ArrayList;

import java.util.Collections;

public class CopyElementsOfArrayListToArrayListExample
{

public static void main(String[] args)

{

ArrayList arrayList1 = new ArrayList();

arrayList1.add("1");

arrayList1.add("2");

arrayList1.add("3");

ArrayList arrayList2 = new ArrayList();

arrayList2.add("One");

arrayList2.add("Two");

arrayList2.add("Three");

arrayList2.add("Four");

arrayList2.add("Five");

System.out.println("Before copy, Second ArrayList Contains : " + arrayList2);  Collections.copy(arrayList2,arrayList1);

System.out.println("After copy, Second ArrayList Contains : " + arrayList2);  

    }

}

Copy Elements of One Java Vector to Another Java Vector

import java.util.Collections;

import java.util.Vector; 

public class CopyElementsOfVectorToVectorExample

 {

public static void main(String[] args)

 {

Vector v1 = new Vector();

v1.add("1");

v1.add("2");

v1.add("3");

Vector v2 = new Vector();

v2.add("One");

v2.add("Two");

v2.add("Three");

v2.add("Four");

v2.add("Five");

System.out.println("Before copy, Second Vector Contains : " + v2);

Collections.copy(v2,v1);

System.out.println("After copy, Second Vector Contains : " + v2);  

   }

}

Copy Elements of Vector to Java Array List

import java.util.ArrayList;

import java.util.Collections;

import java.util.Vector;

public class CopyElementsOfVectorToArrayListExample

{

public static void main(String[] args)

{

Vector v = new Vector();

v.add("1");

v.add("2");

v.add("3");

ArrayList arrayList = new ArrayList();

arrayList.add("One");

arrayList.add("Two");

arrayList.add("Three");

arrayList.add("Four");

arrayList.add("Five");

System.out.println("Before copy ArrayList Contains : " + arrayList);Collections.copy(arrayList,v);

System.out.println("After Copy ArrayList Contains : " + arrayList);  

    }

}