/*
 * @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
*/