/*

* @由于个人水平有限, 难免有些错误, 还请指点:

* @Author: cpu_code

* @Date: 2020-09-12 11:36:45

* @LastEditTime: 2020-09-12 11:53:20

* @FilePath: \java\javaAPI\format.java

* @Gitee: [https://gitee.com/cpu_code](https://gitee.com/cpu_code)

* @Github: [https://github.com/CPU-Code](https://github.com/CPU-Code)

* @CSDN: [https://blog.csdn.net/qq_44226094](https://blog.csdn.net/qq_44226094)

* @Gitbook: [https://923992029.gitbook.io/cpucode/](https://923992029.gitbook.io/cpucode/)

*/

package javaAPI;

public class format {

public static void main(String[] args) {

String s = "cpucode";

System.out.println(s);

//转换为大写

s = s.toUpperCase();

System.out.println(s);

}

}

/*

cpucode

CPUCODE

*/