Java Example Pro

Remove specified element from Java Vector

import java.util.Vector; 

public class RemoveElementFromVectorByObjectExample

{

public static void main(String[] args)

{

Vector v = new Vector();

v.add("1");

v.add("2");

v.add("3");

v.add("4");

v.add("5");

boolean blnElementFound = v.remove("2");

System.out.println("Was 2 removed from Vector ? " + blnElementFound);

System.out.println("Vector contents after remove call...");

for(int index=0; index < v.size(); index++)

System.out.println(v.get(index));

v.removeElement("3");

System.out.println("Was 3 removed from Vector ? " + blnElementFound);

System.out.println("Vector contents after removeElement call...");

for(int index=0; index < v.size(); index++)

System.out.println(v.get(index)); 

   }

}

Replace an element at specified index of Java Vector

import java.util.Vector; 

public class ReplaceElementAtSpecifiedIndexVectorExample

{

public static void main(String[] args)

{

Vector v = new Vector();

v.add("1");

v.add("2");

v.add("3");

v.set(1,"Replaced element");

System.out.println("Vector contains...");

for(int index=0; index < v.size(); index++)

System.out.println(v.get(index));

   }

}

Search an element of Java Vector

import java.util.Vector;

public class SearchAnElementInVectorExample

          {

public static void main(String[] args)

{

Vector v = new Vector();

v.add("1");

v.add("2");

v.add("3");

v.add("4");

v.add("5");

v.add("1");

v.add("2");

boolean blnFound = v.contains("3");

System.out.println("Does Vector contain 3 ? " + blnFound);

int index = v.indexOf("5");

if(index == -1)

System.out.println("Vector does not contain 5");

else

System.out.println("Vector contains 5 at index :" + index);

int lastIndex = v.lastIndexOf("2");

if(lastIndex == -1)

System.out.println("Vector does not contain 2");

else

System.out.println("Last occurrence of 2 in Vector is at index :" + lastIndex);

      }  

}

Search an element of Java Vector from specific index

import java.util.Vector;

public class SearchAnElementFromSpecificIndexVectorExample

{

public static void main(String[] args)

{

Vector v = new Vector();

v.add("1");

v.add("2");

v.add("3");

v.add("4");

v.add("5");

v.add("1");

v.add("2");

int index = v.indexOf("1",4);

if(index == -1)

System.out.println("Vector does not contain 1 after index # 4");

else

System.out.println("Vector contains 1 after index # 4 at index #" + index);

int lastIndex = v.lastIndexOf("2" , 5);

if(lastIndex == -1)

System.out.println("Vector does not contain 2 after index # 5");

else

System.out.println("Last occurrence of 2  after index # 5 in Vector

is at index #" + lastIndex);

   }  

}

Set size of Java Vector

import java.util.Vector;

public class SetSizeOfJavaVectorExample

{

public static void main(String[] args)

 {

Vector v = new Vector();

v.add("1");

v.add("2");

v.add("3");

v.add("4");

v.add("5");

v.setSize(3);

System.out.println("Vector elements after setting size to 3");

for(int index=0; index < v.size(); index++)

System.out.println(v.get(index));

v.setSize(5);

System.out.println("Vector elements after setting size to 5");

for(int index=0; index < v.size(); index++)

System.out.println(v.get(index));  

  }

}