Replace an object with set(int, Object) method

In this section you will learn to replace an object from a particular position specified by a index value. Here is an example that provides the usage of the set(int, object) method in more detail.

Create a class "VecReplace" with an ArrayList .Populate it with the integer objects using the add(int,object) method. Now replace an object from a particular position specified by a index value using the replace() method.

Here is the Code of the Example :

VecReplace.java


import java.util.*;

public class VecReplace{

  public static void main(String args[]){

  Vector v = new Vector();

  v.add(0,new Integer(10));

  v.add(1,new Integer(20));

  v.add(2,new Integer(10));

  v.add(3,new Integer(20));

  v.add(4,new Integer(10));

  v.add(5,new Integer(20));

  System.out.println("The actual Vector Size: " + v.size());

  for(int i=0; i < v.size();i ++){

  Integer iw =(Integer) v.get(i);

  System.out.println(iw);

  }

  v.set(2,new Integer(50));

  System.out.println("After removing the element from the 

position 3, Vector Size: " + v.size());

    for(int i=0; i < v.size();i ++){

  Integer iw =(Integer) v.get(i);

  System.out.println(iw);

  }

  }

}

Here is the Output of the Example :

C:\roseindia>javac VecReplace.java

C:\roseindia>java VecReplace
The actual Vector Size: 6
10
20
10
20
10
20
After removing the element from the position 3, Vector Size: 6
10
20
50
20
10
20

Replace an object with set(int, Object) method

Replace an object with set(int, Object) method

Replace an object with set(int, Object) method

Tutorials