How to make an infinite java program?

Question

I want to make a utility program which shows the date, hour ... :

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Scanner;

public class hh {
    public static void main(String[] args) {
        Scanner mihai = new Scanner (System.in);
        Date dNow = new Date( );
        SimpleDateFormat ft = new SimpleDateFormat ("dd.MM.yyyy");
        Date hNow = new Date( );
        SimpleDateFormat ht = new SimpleDateFormat ("kk:mm");
        String lol;
        lol = mihai.nextLine();
        switch (lol) {
            case "Date":  
                lol = ft.format(dNow);
                break;
            case "Hour":  
                lol = ht.format(hNow);
                break;
            case "?": 
                lol = "2. Hour";
                System.out.println("Supported functions:");
                System.out.println("1. Date");
                break;
            default: 
                lol = "Type ? for help";
                break;
        }
    }
}

But I use eclipse neon for editing the code, but after 1 use the program is terminated. I want to: When the program is at final auto restart it.(go to line 8).

Possible duplicate of [How to repeat/loop/return to a class](https://stackoverflow.com/questions/9040122/how-to-repeat-loop-return-to-a-class) — Bernhard Barker, Sep 20 '17 at 12:45

score 2 · Answer 1 · answered Sep 20 '17 at 12:26

2

To repeat something you can use a while-loop.

The easiest method to perfom this, is to put your code between while(true). The while loop is looping the code as long as the condition between the brackets is true. If you write while(true) the condition is always true. That is why it is always repeating your code immediately.

while(true){
    //your code
}

More information at: https://docs.oracle.com/javase/tutorial/java/nutsandbolts/while.html

answered Sep 20 '17 at 12:26

Black Phantom

257
2
10

hey where I need to put this? – Mikey Sep 20 '17 at 13:10
You have to put the code you want to repat inside the while-loop. I guess it would be everything from line 8 to the closing bracket of the switch statement. – Black Phantom Sep 20 '17 at 14:03

How to make an infinite java program?

1 Answers1