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string_capital.java
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30 lines (26 loc) · 1.06 KB
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/*
* @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。
*/