How to clear the console in Java

Question

I want to clear the console. How can I do this?

Answer 1

public static void clearScreen() {  
    System.out.print("\033[H\033[2J");  
    System.out.flush();  
}  

The code given above will help you to clear the screen.

Hope it helps!!

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Comments

it not works, am i wrong?

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Hey,

Are you getting any error in doing this? If you are getting please post it here, it will be helpful to investigate further.

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not worked just printing this on the console window "\033[H\033[2J".

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Hey, @There,

I would suggest you try this: 

Runtime.getRuntime().exec("cls");

Answer 2

import java.io.IOException;

public class CLS {
    public static void main(String... arg) throws IOException, InterruptedException {
        new ProcessBuilder("cmd", "/c", "cls").inheritIO().start().waitFor();
    }
}

Now when the Java process is connected to a console, i.e. has been started from a command line without output redirection, it will clear the console.

Comments

i can be generated an error to neatbens

Answer 3

import java.io.IOException;

public class chkClearScreen {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        clear();
        System.out.println("Screen out has been flushed");
    }

    public static void clear()
    {
        try
        {
            if (System.getProperty("os.name").contains("Windows"))
                new ProcessBuilder("cmd", "/c", "cls").inheritIO().start().waitFor();
            else
                Runtime.getRuntime().exec("clear");
        } catch (IOException | InterruptedException ex) {}
    }
}

Answer 4

System.out.println("\f");

You can paste the above ↑↑ code in your program to clear the terminal screen while the program is running 

This is a sample code:

public class ClearScreen
{
    public static void main(String args[])
    {
        for(int i = 1 ; i < 4 ; i++)
        {
            System.out.println("This code will get erased after it is printed " + (4-i) + " more time(s)"); 
            try
            {
                Thread.sleep(2000);
            }
            catch(Exception e)
            {
                
            }
        }
        
        // code to clear screen 
        System.out.print("\f");
        
        // printing after erased
        System.out.println("Code was erased!!");
    }
}