Java BreakIterator current()方法及示例

java.text.BreakIterator 类的 current() 方法是用来获取一行字中最近的文本边界的索引。它提供了当前由BreakIterator指向的文本的偏移量。

语法

public abstract int current()

参数： 该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 。

下面是一些例子来说明 current() 方法。

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(): 0current position after calling 1st next(): 4current position after calling 2nd next(): 6

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(): 0current position after calling 1st next(): 13current position after calling 2nd next(): 13

参考资料: https://docs.oracle.com/javase/9/docs/api/java/text/BreakIterator.html#current-