Java中的 BreakIterator current() 方法及示例

Java.text.BreakIterator类的current()方法用于获取单词行中最近文本边界的索引。它提供了 BreakIterator 当前指向的文本的偏移量。

句法：

public abstract int current()

参数：此方法不接受任何参数。

返回值：该方法提供最近文本边界的索引。

以下是说明current()方法的示例：

示例 1：

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

输出：

current position before calling next(): 0

current position after calling 1st next(): 4

current position after calling 2nd next(): 6

示例 2：

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

输出：

current position before calling next(): 0

current position after calling 1st next(): 13

current position after calling 2nd next(): 13

参考： https://docs.oracle.com/javase/9/docs/api/ Java/text/BreakIterator.html#current–