Java MessageFormat使用方式

最近用到这个，通过看jdk1.8的中文文档，发现中文版翻译的乱七八糟还不如看原版
然后在IDE中看MessageFormat的 源码，大概看懂了
其意思就是，这个是用来规范格式的，把字符串按照规定的格式拼接起来

使用静态方法format()

String result = MessageFormat.format("{0} -> {1}", "Hello", "world")  // Hello -> world

放大招

package Socket_Thread.heimaLiaotian;

import java.text.MessageFormat;

public class MessageFormatDemo
{
    public static void main(String[] args) {
        StringBuilder sb = new StringBuilder();
        String classSample = MessageFormat.format(Constant.classSample,"电脑");
        sb.append(Constant.sb0+"n");
        sb.append(classSample);
        System.out.println(sb);

    }
}

class Constant{
    public static StringBuilder sb0 = new StringBuilder("n" +
            "n" +
            "    n" +
            "    n" +
            "    n" +
            "    n" +
            "    n" +
            "    ");

    static String classSample =
            "n" +
                    "n" +
            "";

}

参考链接：
https://blog.csdn.net/m0_52571715/article/details/110356346
IDE中MessageFormat源码注释