/* * @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 12:01:23 * @FilePath: \java\javaAPI\string_capital.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 string_capital { public static void main(String[] args) { String s = "my name is %s , age is %d!"; //System.out.println(s.formatted("cpu_code", 21)); System.out.println(String.format("my name is %s , age is %d!","cpu", 22)); } } /* 有几个占位符,后面就传入几个参数。参数类型要和占位符一致。我们经常用这个方法来格式化信息。常用的占位符有: %s:显示字符串; %d:显示整数; %x:显示十六进制整数; %f:显示浮点数。 */