stop the program when user press enter key

Question

Please test my code please. I am trying to terminate my program when user press enter key or not texting anything.But my program is not terminate.Help me please!

Scanner s = new Scanner(System.in);
        String a =s.nextLine();
        
        while(s.hasNext())
        {
            System.out.println(s.nextLine());
        }

Your program terminates when the EOF character is typed. – tgdavies Dec 20 '20 at 06:05 — tgdavies, Dec 20 '20 at 06:05
You can end this by typing a control-d or a control-z. – NomadMaker Dec 20 '20 at 06:20 — NomadMaker, Dec 20 '20 at 06:20

Idle_Mind · Answer 1 · 2020-12-20T06:22:13.140

1

You want it to echo whatever the user types until they hit enter without typing anything in?

Scanner s = new Scanner(System.in);
String a = s.nextLine();
while(!a.equals("")) {
    System.out.println(a);
    a = s.nextLine();
}

edited Dec 20 '20 at 06:22

answered Dec 20 '20 at 06:14

Idle_Mind

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Your code has a bug in the while statement. It must be `!a.equals("")`, then it will work. – Elmar Brauch Dec 20 '20 at 06:20
Thanks! Hazards of coding in my phone browser. – Idle_Mind Dec 20 '20 at 06:21

score 0 · Answer 2 · answered Dec 20 '20 at 06:28

0

This thread might help you. Java Scanner hasNext() doesn't return false

your s.hasNext() is pending in your code because the Scanner is on System.in

answered Dec 20 '20 at 06:28

pref

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stop the program when user press enter key

2 Answers2