用Java覆盖终端上的文本，Console.read * [英] Overwriting text on terminal with Java, issue with Console.read*

问题描述

我知道有数百个问题要求如何在控制台上更新已经写入的文本，我知道我可以打印\r字符。

I know there are hundreds of questions asking how to update already written text on console and I know I can do it printing the \r character.

我的问题当我使用Console.readPassword或Console.readLine创建一个新行，后来我不能覆盖它。

My issue comes when I use Console.readPassword or Console.readLine which creates a new line and later I can't overwrite it.

我认为我的问题与一些特别的关于Console.read *方法，但到新行。 \r转到当前行的开始，我需要能够去前一个N行的开始，并从那里开始覆盖。

I think that my issue isn't related to something special about the Console.read* methods but to new lines. \r goes to the start of the current line, I need to be able to go to the start of the previous N line and start overwriting from there. Or just clear the entire screen.

任何想法我该如何做？

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推荐答案

原则上，这是终端依赖的，简单的Java意味着没有办法为所有控制台这样做。

In principle, this is terminal dependent, and with simple Java means there is no way to do this for all consoles.

许多终端（至少在unixoid系统中）支持 ANSI转义序列，因此您可以在其中写入\\\ [1; 5H）将光标移动到第1行第5列。

Many terminals (at least in unixoid systems) support ANSI-escape sequences, so you can there write something like "\u001B[1;5H" to move the cursor to line 1, columnn 5.

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