Is there any equivalent of getch() from C++ in Java?

Question

Is there any equivalent to C++’s getch() in Java? That is a function that moves the control forward as soon as a keyboard key is pressed, and also stores the character pressed.

I would like to use that function in a console app.

Should be noted `getch` isn't a standard C++ function. – Rapptz Jul 20 '13 at 05:53 — Rapptz, Jul 20 '13 at 05:53

Sri Harsha Chilakapati · Answer 1 · 2013-07-20T06:12:43.450

3

You can use casting and get a character value from the console directly.

public class TestConsole
{
    public static void main(String[] args)
    {
        System.out.print("Enter a character: ");
        // Read the char
        char ch = (char) System.in.read();

        System.out.print("\n You pressed: " + ch);
    }
}

It's working. See this demo online. http://ideone.com/RZ6vhK

edited Jul 20 '13 at 06:12

answered Jul 20 '13 at 05:57

Sri Harsha Chilakapati

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But that'll require the enter key to be pressed after typing the character, and I want a single key to be pressed not an ENTER along with it and move to the next statement of program. – Kamran Ahmed Jul 20 '13 at 05:59
Edited. Now it works. Added an online execution to see yourself. – Sri Harsha Chilakapati Jul 20 '13 at 06:07

score 3 · Accepted Answer · edited May 23 '17 at 12:13

3

There's no getch() function equivalent in java. But since you are not the first one who is asking about it, there are some solutions available:

I think nothing has changed since then - I mean, no new getch() alike functions were added to Java.

edited May 23 '17 at 12:13

Community

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answered Jul 20 '13 at 06:52

Qiu

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score 2 · Answer 3 · edited May 23 '17 at 12:24

2

There's no getch() function equivalent in java.

You have to create a GUI and attach the Event Listener's to them .

EDIT:How can I read input from the console using the Scanner class in Java?

edited May 23 '17 at 12:24

Community

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answered Jul 20 '13 at 05:52

Suresh Atta

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What about, if I want to acheive this in `console` ? – Kamran Ahmed Jul 20 '13 at 05:53
No,you asked **as soon as a button is pressed...** – Suresh Atta Jul 20 '13 at 05:53
Sorry, if I wasn't clear, now it's **keyboard key** – Kamran Ahmed Jul 20 '13 at 05:56
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You can do it with Scanner class. – Suresh Atta Jul 20 '13 at 05:58
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I know, but that'll require the enter key to be pressed after typing the character, and I want a single key to be pressed not an ENTER along with it and move to the next statement of program. – Kamran Ahmed Jul 20 '13 at 05:59
Something like this ??http://stackoverflow.com/questions/7817202/check-if-user-input-anything-before-pressing-enter – Suresh Atta Jul 20 '13 at 06:04

Is there any equivalent of getch() from C++ in Java?

3 Answers3