Java Character isSpaceChar()方法

java.lang.Character.isSpaceChar(char ch) 确定指定的字符是否为Unicode空白字符。一个字符被认为是当且仅当它被指定为Unicode标准空格字符空格字符。

此方法返回true,如果字符是下列任何一般类别类型:

  • SPACE_SEPARATOR

  • LINE_SEPARATOR

  • PARAGRAPH_SEPARATOR

1 语法

public static boolean isSpaceChar(char ch)

2 参数

ch:要测试字符

3 返回值

如果字符为空格字符此方法返回true,否则返回false。

4 示例 

package com.yiidian;

/**
 * 一点教程网: http://www.yiidian.com
 */
/**
 * Java Character isSpaceChar()方法
 */
import java.lang.*;

public class CharacterDemo {

   public static void main(String[] args) {

      // create 2 char primitives ch1, ch2
      char ch1, ch2;

      // assign values to ch1, ch2
      ch1 = ' ';
      ch2 = 'u2028';  // LINE_SEPARATOR

      // create 2 boolean primitives b1, b2
      boolean b1, b2;

      /**
       *  check if ch1, ch2 are space characters
       *  and assign results to b1, b2
       */
      b1 = Character.isSpaceChar(ch1);
      b2 = Character.isSpaceChar(ch2);

      String str1 = "ch1 is a space character is " + b1;
      String str2 = "ch2 is a space character is " + b2;

      // print b1, b2 values
      System.out.println( str1 );
      System.out.println( str2 );
   }
}

输出结果为:

ch1 is a space character is true
ch2 is a space character is true

 

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