FieldPosition setBeginIndex() method in Java with Example

The setBeginIndex() method of java.text.FieldPosition class is used to set the index of the beginning character of the FieldPosition object.
Syntax:

public void setBeginIndex(int index)

Parameter: This method takes the integer value index for the new index of the starting character of the FieldPosition object.
Return Value: This method has nothing to return.
Below are the examples to illustrate the setBeginIndex() method:
Example 1:

Java

// Java program to demonstrate
// setBeginIndex() method
 
import java.text.*;

import java.util.*;

import java.io.*;
 
public class GFG {

    public static void main(String[] argv)

    {

        try {
 
            // Creating and initializing

            // new FieldPosition Object

            FieldPosition pos

                = new FieldPosition(DateFormat.Field.AM_PM);
 
            // setting begin index of FieldPosition Object

            // using setBeginIndex() method

            pos.setBeginIndex(5);
 
            // getting begin index of FieldPosition Object

            int i = pos.getBeginIndex();
 
            // display result

            System.out.println("begin index :- " + i);

        }
 
        catch (ClassCastException e) {
 
            System.out.println("Exception thrown : " + e);

        }

    }
}

Output:

begin index :- 5

Example 2:

Java

// Java program to demonstrate
// setBeginIndex() method
 
import java.text.*;

import java.util.*;

import java.io.*;
 
public class GFG {

    public static void main(String[] argv)

    {

        try {
 
            // Creating and initializing

            // new FieldPosition Object

            FieldPosition pos

                = new FieldPosition(

                    MessageFormat.Field.ARGUMENT);
 
            // setting begin index of FieldPosition Object

            // using setBeginIndex() method

            pos.setBeginIndex(10);
 
            // getting begin index of FieldPosition Object

            int i = pos.getBeginIndex();
 
            // display result

            System.out.println("begin index :- " + i);

        }
 
        catch (ClassCastException e) {
 
            System.out.println("Exception thrown : " + e);

        }

    }
}