如何在 Java 中清除控制台?

问题描述

很长一段时间以来，我一直为此拉头发.我研究了一个小时如何在 Java 中清除控制台.

I have been pulling my hair for this since quite long time. I have researched for an hour on how to clear a console in Java.

我发现的只是通过打印一堆行或执行这个来进行肮脏的黑客攻击

All I found was dirty hacking either by printing a bunch of lines or executing this

Runtime.getruntime.exec("cls/clear");

但是，似乎没有什么对我有用.真的没有任何方法可以像在 C (clrscr();) 中那样在 Java 中清除控制台.没有任何外部库可以实现这一点.

However, nothing seems to be working for me. Isn't there really any a way of clearing the console in Java like in C (clrscr();). Isn't there any external library by which this can be achieved.

如果有人在使用适当的函数、库等而不是肮脏的黑客攻击之前做过这件事，请告诉我.

Please let me know if anyone has ever done this before using a proper function, library etc. instead of dirty hacking.

推荐答案

如果您的终端支持 ANSI 转义码，这将清除屏幕并将光标移动到第一行第一列:

If your terminal supports ANSI escape codes, this clears the screen and moves the cursor to the first row, first column:

System.out.print("33[H33[2J");
System.out.flush();

这适用于几乎所有的 UNIX 终端和终端仿真器.Windows cmd.exe 不解释 ANSI 转义码.

This works on almost all UNIX terminals and terminal emulators. The Windows cmd.exe does not interprete ANSI escape codes.

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