BreakIterator following() method in Java with Examples

The following() method of java.text.BreakIterator class is used to return the index of the first boundary which is present after the specified offset in the line of text. it provides the offset of the first character of the next boundary which follows the passed offset’s boundary.

Syntax:

public abstract int following(int offset)

Parameter: This method takes the offset as a parameter for which required boundary has to found which follows the first one.



Return Value: This method provides the fist boundary after the specified offset.

Exception: This method throws IllegalArgumentException if the offset is less than the first boundary and greater than the last boundary.

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

Example 1:

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// Java program to demonstrate following() method
  
import java.text.*;
import java.util.*;
import java.io.*;
  
public class GFG {
    public static void main(String[] argv)
    {
        try {
            int current = 0;
  
            // creating and initializing BreakIterator
            BreakIterator wb
                = BreakIterator.getWordInstance();
  
            // setting text for BreakIterator
            wb.setText("Code  Geeks");
  
            // getting the text boundary
            current = wb.following(0);
  
            // display the result
            System.out.println(
                "first boundary for offset 0 : "
                + current);
  
            // getting the text boundary
            current = wb.following(4);
  
            // display the result
            System.out.println(
                "\nfirst boundary for offset 4 : "
                + current);
  
            // getting the text boundary
            current = wb.following(8);
  
            // display the result
            System.out.println(
                "\nfirst boundary for offset 8 : "
                + current);
        }
  
        catch (IllegalArgumentException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

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Output:

first boundary for offset 0 : 4

first boundary for offset 4 : 6

first boundary for offset 8 : 11

Example 2:

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// Java program to demonstrate following() method
  
import java.text.*;
import java.util.*;
import java.io.*;
  
public class GFG {
    public static void main(String[] argv)
    {
        try {
            int current = 0;
  
            // creating and initializing BreakIterator
            BreakIterator wb
                = BreakIterator.getWordInstance();
  
            // setting text for BreakIterator
            wb.setText("Code  Geeks");
  
            // getting the text boundary
            current = wb.following(0);
  
            // display the result
            System.out.println(
                "first boundary for offset 0 : "
                + current);
  
            // getting the text boundary
            current = wb.following(4);
  
            // display the result
            System.out.println(
                "\nfirst boundary for offset 4 : "
                + current);
  
            // getting the text boundary
            current = wb.following(-8);
  
            // display the result
            System.out.println(
                "\nfirst boundary for offset 8 : "
                + current);
        }
  
        catch (IllegalArgumentException e) {
            System.out.println(
                "\noffset is less than"
                + " the first boundary");
            System.out.println("Exception thrown : " + e);
        }
    }
}

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Output:

first boundary for offset 0 : 4

first boundary for offset 4 : 6

offset is less than the first boundary
Exception thrown : java.lang.IllegalArgumentException: offset out of bounds

Reference: https://docs.oracle.com/javase/9/docs/api/java/text/BreakIterator.html#following-int-



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