Java BreakIterator isBoundary()方法及示例

java.text.BreakIterator 类的 isBoundary() 方法用于检查传递的偏移量是否为边界。

语法

public boolean isBoundary(int offset)

参数： 该方法以 偏移量 为参数，检查其是否为边界。

返回值： 如果传递的偏移量是边界，则该方法提供 true ，否则提供 false

下面的例子说明了 isBoundary() 方法。

例子1 :

// Java program to demonstrate isBoundary() 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");
  
        // checking for the boundary
        // by using isBoundary() method
        boolean status = wb.isBoundary(0);
  
        // display the result
        if (status)
            System.out.println("offset is a boundary");
        else
            System.out.println("offset is not a boundary");
    }
}

输出:

offset is a boundary

例2 :

// Java program to demonstrate isBoundary() 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");
  
        // checking for the boundary
        // by using isBoundary() method
        boolean status = wb.isBoundary(2);
  
        // display the result
        if (status)
            System.out.println("offset is a boundary");
        else
            System.out.println("offset is not a boundary");
    }
}

输出: