Java - how can i type in user input using cmd command

Question

this may be blurry to grasp but i'm new to java whole thing and i want to know how can i use cmd to type something in user input

E:\My apps\Java apps\test\src\main\java>java ls.java && echo E:/
enter File name or path :

in this input i want to enter the path via cmd the "&& echo E:/" doesn't work

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score 2 · Answer 1 · answered Aug 10 '21 at 00:39

You can use "Command Line Arguments" in order to give the input when running the program!

Assuming your file name is ls.java

compile it using: javac ls.java

when running it using java command type the arguments in front of it like:

java ls E:/path

Now you can catch the arguments in the program

   public class ls {
         public static void main(String[] args)
         {
              String path  = args[0];
         } 
    }

you can add more arguments by spaces and catch them in String array

java ls E:/path 100 200

System.out.println(args[1]); // will print 1
System.out.println(args[2]; //will print 200

NOTE: As implied all the command line arguments are stored in the form of String, if you want to convert them to another format, you'd need to parse them using methods.

Java - how can i type in user input using cmd command

1 Answers1