BreakIterator first() method in Java with Examples

The first() method of java.text.BreakIterator class is used to get the index of the first boundary.it always return the start index of first boundary.it provides the offset of first character of first boundary.

Syntax:

public abstract int first()

Parameter: This method does not accept any parameter.

Return Value: This method provides the index of the first boundary.

Below are the examples to illustrate the first() method:

Example 1:

// Java program to demonstrate first() method

import java.text.*;
import java.util.*;
import java.io.*;

public class GFG {
    public static void main(String[] argv)
    {
        // creating and initializing BreakIterator
        BreakIterator wb
            = BreakIterator.getWordInstance();

        // setting text for BreakIterator
        wb.setText("Code  Geeks");

        // getting the index of first text boundary
        int first = wb.first();

        // display the result
        System.out.println("first boundary : " + first);
    }
}

Output:

first boundary : 0

Example 2:

// Java program to demonstrate
// first() method

import java.text.*;
import java.util.*;
import java.io.*;

public class GFG {
    public static void main(String[] argv)
    {
        // creating and initializing BreakIterator
        BreakIterator wb
            = BreakIterator.getWordInstance();

        // setting text for BreakIterator
        wb.setText("    GeeksForGeeks");

        // getting the index of first text boundary
        int first = wb.first();

        // display the result
        System.out.println("first boundary : " + first);
    }
}

Output:

first boundary : 0

Reference: https://docs.oracle.com/javase/9/docs/api/java/text/BreakIterator.html#first–