Java -Jar "my project" not executing in C.P (windows)

Question

I am trying to run a java file in the command prompt. the project was made in NetBeans. so I tried running it with java -jar "D:\Java Projects\Algo1\dist\Algo1.jar" which is what NetBeans told me to run in the command prompt. however, I get the following:

my code is: `

public static void main(String[] args) {
        // TODO code application logic here
        Scanner N = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
        Scanner K = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
        Scanner L = new Scanner(new BufferedReader(new InputStreamReader(System.in)));

        System.out.println(K);
    }

What's the problem? Your code seems to run, i.e. the output you get is what `System.out.println(K);` does. — Thomas, Mar 13 '17 at 17:53
@Thomas its my first time doing this sort of thing, but I was expecting a place for me to enter in the value for k — Muaaz Kasker, Mar 13 '17 at 17:55
In that case you should reread the tutorials and documentation on `Scanner`. You need only one and then use that to query the user, e.g. by calling `next()`. — Thomas, Mar 13 '17 at 17:58

score 2 · Accepted Answer · edited May 23 '17 at 12:32

2

When you call System.out.println(K), java will print the argument (K) to the console. In this case the output tells you that you have an instance of the class java.util.Scanner and its properties.

When you want to read an input from the console, you should use the nextLine() method from the Scanner class, for example

String input = K.nextLine();

You can read more here: https://stackoverflow.com/a/11871792/7677308

edited May 23 '17 at 12:32

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answered Mar 13 '17 at 18:01

SilverNak

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Just the thing I was looking for. Works great – Muaaz Kasker Mar 13 '17 at 18:05

Java -Jar "my project" not executing in C.P (windows)

1 Answers1