Java开发网 - 请教：LINUX下Console输出信息的清屏命令

Topic: 请教：LINUX下Console输出信息的清屏命令

1.请教：LINUX下Console输出信息的清屏命令	Copy to clipboard
Posted by: xxg0621 Posted on: 2004-11-01 10:41 我现在要用java做一个类似与Fdisk的dos下的菜单式界面，但是我不知道在向屏幕输出信息之前如何清屏。那位大哥知道？我不胜感激！我的程序是要在linux系统下运行的 .

2.Re:请教：LINUX下Console输出信息的清屏命令 [Re: xxg0621]	Copy to clipboard
Posted by: littledeer1974 Posted on: 2004-11-01 11:02 clear 相当于DOS的CLS http://www.yesky.com/20030306/1655486_11.shtml {这个我想应该自己能查到的吧}

3.Re:请教：LINUX下Console输出信息的清屏命令 [Re: littledeer1974]	Copy to clipboard
Posted by: xxg0621 Posted on: 2004-11-01 18:59 怎么加到java代码里面呀？大哥比如说我要输出字符串 pringln("Hello"); println("How are you!"); 我怎么让Linux 的shell在显示输出字符串Hello之前清屏？

4.Re:请教：LINUX下Console输出信息的清屏命令 [Re: xxg0621]	Copy to clipboard
Posted by: littledeer1974 Posted on: 2004-11-01 21:24 xxg0621 wrote: 怎么加到java代码里面呀？大哥比如说我要输出字符串 pringln("Hello"); println("How are you!"); 我怎么让Linux 的shell在显示输出字符串Hello之前清屏？你在你的第一贴里没有问这个呀,老大,这是谁的问题呢? 你自己得首先问清楚对不对呢?

5.Re:请教：LINUX下Console输出信息的清屏命令 [Re: littledeer1974]	Copy to clipboard
Posted by: ditty Posted on: 2004-11-02 08:29 Runtime runtime = Runtime.getRuntime(); runtime.exec("clear"); System.out.println("Hello"); System.out.println("How are you!");

6.Re:请教：LINUX下Console输出信息的清屏命令 [Re: ditty]	Copy to clipboard
Posted by: kavinwang Posted on: 2004-11-02 09:05 ditty wrote: Runtime runtime = Runtime.getRuntime(); runtime.exec("clear"); System.out.println("Hello"); System.out.println("How are you!"); 你试过有用吗？

7.Re:请教：LINUX下Console输出信息的清屏命令 [Re: xxg0621]

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Posted by: littledeer1974
Posted on: 2004-11-02 09:13

I tried this in Linux
runs well

Smile



import java.io.IOException;
public class test {
  public static void main(String[] args) {
    Runtime runtime = Runtime.getRuntime();
    try {
      runtime.exec("clear");
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    System.out.println("Hello");
    System.out.println("How are you!");
  }
}

8.Re:请教：LINUX下Console输出信息的清屏命令 [Re: littledeer1974]	Copy to clipboard
Posted by: xxg0621 Posted on: 2004-11-13 17:08 谢谢! 为什么同样的程序把clear命令改成windows下的cls命令却不能在windows下运行? 请指教!

9.Re:请教：LINUX下Console输出信息的清屏命令 [Re: xxg0621]	Copy to clipboard
Posted by: qingbo777 Posted on: 2004-11-13 17:42 你试试在windows运行里打cls能直接运行么? 这就是你的程序在windows下不能运行的原因. 试着改成"cmd /k cls" 应该就可以了.

10.Re:请教：LINUX下Console输出信息的清屏命令 [Re: qingbo777]

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Posted by: xxg0621
Posted on: 2004-11-14 14:35

改成"cmd /k cls"就更不行了,我的程序如下,运行之后就会发生IOException,大侠帮我分析分析:

import java.io.*;
public class cls {
public static void main(String[] args) {
//clear the screen(for Windows System)
try
{
Process process = Runtime.getRuntime().exec ("cls");
InputStreamReader ir=new InputStreamReader(process.getInputStream());
LineNumberReader in = new LineNumberReader (ir);
String line;
while ((line = in.readLine ()) != null)
System.out.println(line);
}
catch (Exception e) {
System.err.println ("IOException " + e.getMessage());
}
System.out.println("Hello");
System.out.println("How are you!");
}
}

11.Re:请教：LINUX下Console输出信息的清屏命令 [Re: xxg0621]	Copy to clipboard
Posted by: qingbo777 Posted on: 2004-11-15 12:04 sorry,我记错了.应该是"cmd /c cls". 另外,cmd是win2000或xp下的.如果是win98或nt的话,要改成command. 你可以用System.getProperty("os.name")来获取当前操作系统的名称,然后作进一步的选择.