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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