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Java

Posted by Ben Os
Ben Os
20,008 Points

Where to display console text in Java?

I started the "Java basics" course and took the first series of lessons.

I went to my Ubuntu, installed javac, and created a file named Introductions.java, there I wrote:

import java.io.*;
public class Introductions {
public static void main( String[] args ) {
    Console console = System.console();
        console.printf("hello");
        String userName = console.readLine("Enter your user name: ");
        console.printf("First name: %s", userName);
        }
    }

I than compiled it via javac Introductions.java and got the file: Introductions.class in return.

My question is this:

Given the source code prints the string "hello", and given the Introductions.class contains machine coded when opened with a text editor, where should I see the printed string "hello" at?

I executed in Bash, in the same dir, java Introductions.class, and didn't get the string printed, hence I ask this.

1 Answer

Craig Dennis
STAFF
Craig Dennis
Treehouse Teacher
Craig Dennis
Craig Dennis
Treehouse Teacher

To run the program, you type java Introductions without the .class extension.

That help?

Ben Os
Ben Os
20,008 Points

Hi Craig! Yest it did! Thx! ^__^