Java Character isLowerCase()方法
java.lang.Character.isLowerCase(char ch) 确定指定的字符是否为小写字母。
字符是小写如果是一般性类型,Character.getType(ch)所提供为LOWERCASE_LETTER,或为属性Other_Lowercase Unicode的标准定义。
1 语法
public static boolean isLowerCase(char ch)
2 参数
ch:要测试的字符
3 返回值
如果字符是小写此方法返回true,否则返回false。
4 示例
package com.yiidian;
/**
* 一点教程网: http://www.yiidian.com
*/
/**
* Java Character isLowerCase()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 = 'A';
ch2 = 'a';
// create 2 boolean primitives b1, b2
boolean b1, b2;
// check if ch1, ch2 are in lowercase and assign results to b1, b2
b1 = Character.isLowerCase(ch1);
b2 = Character.isLowerCase(ch2);
String str1 = ch1 + " is a lowercase character is " + b1;
String str2 = ch2 + " is a lowercase character is " + b2;
// print b1, b2 values
System.out.println( str1 );
System.out.println( str2 );
}
}
输出结果为:
A is a lowercase character is false
a is a lowercase character is true
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