Java中的 BreakIterator next(int) 方法及示例

Java.text.BreakIterator类的next()方法用于从当前边界（通过调用 current() 方法检索到的边界）获取第 n 个下一个边界的索引。它提供了在 BreakIterator 指向的当前边界之后或之前的边界第一个字符的偏移量。

句法：

public abstract int next(int n)

参数：它以n（要跳过的边界数）作为参数。如果 n 为正，它将向前跳过边界，否则向后跳过。

返回值：此方法提供从当前边界开始的第 n 个下一个边界的索引。

以下是说明next()方法的示例：

示例 1：

// Java program to demonstrate next() method
  
import java.text.*;
import java.util.*;
import java.io.*;
  
public class GFG {
    public static void main(String[] argv)
    {
        // creating and initializing with zero
        int current = 0, next = 0;
  
        // creating and initializing BreakIterator
        BreakIterator wb
            = BreakIterator.getWordInstance();
  
        // setting text for BreakIterator
        wb.setText("Code  Geeks");
  
        // getting the current text boundary
        current = wb.current();
  
        // display the result
        System.out.println(
            "current position before"
            + " calling next() : "
            + current);
  
        // calling next method
        next = wb.next(2);
  
        // display the result
        System.out.println(
            "\ncurrent position after"
            + " calling 1st next() : "
            + next);
  
        // calling next method
        next = wb.next(-1);
  
        // display the result
        System.out.println(
            "\ncurrent position after"
            + " calling 2nd next() : "
            + next);
    }
}

输出：

current position before calling next() : 0

current position after calling 1st next() : 6

current position after calling 2nd next() : 4

示例 2：

// Java program to demonstrate next() method
  
import java.text.*;
import java.util.*;
import java.io.*;
  
public class GFG {
    public static void main(String[] argv)
    {
        // creating and initializing with zero
        int current = 0, next = 0;
  
        // creating and initializing BreakIterator
        BreakIterator wb
            = BreakIterator.getWordInstance();
  
        // setting text for BreakIterator
        wb.setText("Code  Geeks");
  
        // getting the current text boundary
        current = wb.current();
  
        // display the result
        System.out.println(
            "current position before"
            + " calling next() : "
            + current);
  
        // calling next method
        next = wb.next(1);
  
        // display the result
        System.out.println(
            "\ncurrent position after"
            + " calling 1st next() : "
            + next);
  
        // calling next method
        next = wb.next(2);
  
        // display the result
        System.out.println(
            "\ncurrent position after"
            + " calling 2nd next() : "
            + next);
    }
}

输出：

current position before calling next() : 0

current position after calling 1st next() : 4

current position after calling 2nd next() : 11

参考： https://docs.oracle.com/javase/9/docs/api/ Java/text/BreakIterator.html#next-int-