如何在 Java 中使用占位符进行字符串格式化(如在 Python 中)?

2022-01-15 00:00:00 python string format placeholder java

我是 Java 新手,来自 Python.在 Python 中,我们像这样进行字符串格式化:

I am new to Java and am from Python. In Python we do string formatting like this:

>>> x = 4
>>> y = 5
>>> print("{0} + {1} = {2}".format(x, y, x + y))
4 + 5 = 9
>>> print("{} {}".format(x,y))
4 5

如何在 Java 中复制相同的东西?

How do I replicate the same thing in Java?

推荐答案

MessageFormat 类看起来像你所追求的.

The MessageFormat class looks like what you're after.

System.out.println(MessageFormat.format("{0} + {1} = {2}", x, y, x + y));

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