/*
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* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package test;
import java.util.Scanner;
/**
*
* @author Administrator
*/
public class NewClass {
public static void main(String[] args) {
String test ;
Scanner in = new Scanner(System.in);
while(true){
System.out.println("请输入您要输入的字符:");
test = in.nextLine();
if(test.equals("0"))
break; //输入0时结束
char test1 = test.charAt(0);
System.out.println("输出的字符为:");
System.out.println(Character.isLowerCase(test1)?Character.toUpperCase(test1):test1);
/*?:三元表达式:若Character.isLowerCase(test1)为真则代表是小写字母,此时输出
Character.toUpperCase(test1),否则原样输出*/
}
}
}
结果如下: