CODEWITHSUNDEEP
java
kokokok
kokokok

Reputation: 479

how to do a system pause in java for debugging?

Is there any functionality in Java for pausing the program like system("PAUSE"); does in C++?

Upvotes: 5

Views: 63711

Answers (6)

rupali shah
rupali shah

Reputation: 19

There is a cin.get(), or cin.ignore() thing in C++, which basically makes you press the enter key to to exit the program, I know it is cheesy, but it works. What you could do is setup a scanner with a .nextLine(), like this

    import java.util.Scanner;


 public class Example {

public static void main(String args[]){
    Scanner pauser = new Scanner (System.in);

    System.out.println("!!!Hello World!!!");
    pauser.nextLine();
    }

 }

then the user must press enter to exit the program.

Upvotes: 1

Wemilianius
Wemilianius

Reputation: 180

The Short Is Yes, But You Have To Build It Using The Standard Output With System.out and Using The Scanner Class To Wait For New Line Input ('\n') From Standard Input From The System.in 

public class PauseTest {

     public static void main(String args[]){

          System.out.println("Press Any Key To Continue...");
          new java.util.Scanner(System.in).nextLine();
     }
}

NOTE: I used a direct reference to the Scanner Class in java.util package, but you could simply add the import java.util.Scanner; or import java.util.*; Basically the same thing.

Upvotes: 13

aperkins
aperkins

Reputation: 13114

If you are attempting to debug, use a debugger. Netbeans and Eclipse both have one built in, and I am sure there are others.

If you are trying to get a thread to wait on another thread, use a thread.join().

Upvotes: 0

Jeroen van Bergen
Jeroen van Bergen

Reputation: 1046

Doing debugging is best done with a debugger, NetBeans (what you seem to be using if I look at other questions you have asked) has one. Just click in the left margin of an editor window to set a breakpoint and run the debugger. Program execution will stop at the breakpoint and you can have a look at the current state of variables, or step through the program line by line.

Upvotes: 8

Cat Plus Plus
Cat Plus Plus

Reputation: 129774

I don't know Java very well, but if you want to debug, then you may want to use debugger, and breakpoints for pausing execution. If you just want to wait for keyboard input, then check out System.in.read, or something similar.

Upvotes: 1

RichardOD
RichardOD

Reputation: 29157

You mean like Thread.sleep()? Please elaborate if you want further help...

Upvotes: 2

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