使用String.format

Question

如何使用字符串格式化程序连接字符串。我试过的是没用的。

  String description = "This is description,";
   String message = "This is message";

   String result = description + " " + message; //works fine.

   //I want to replace it using String.format.
   //I tried the below code and it does not work.

   String.format(description, " ", message);

预期结果是This is description This is message

使用String.format的正确方法是什么？

谢谢R

Answer 1

String.format("%s %s", description, message);

函数头：

public static String format(String format, Object... args)

您必须传递格式和要设置的变量。在Javadoc花很多钱。

Answer 2

试试这个：

String.format("%s %s",description, message);

Answer 3

代码:

String description = "This is description %1$s";
String message = "This is message";
String finalText = String.format(description, message);

输出:

这是描述，这是消息