Question

I need to read somehow “echo a | java Class”. I tried

public class Class 
{
    public static void main(String[] args)
    {
        System.out.println(args[0]);
    }
}

But it doesn’t work. I can’t find any other solution. Thanks.

Answer 1

Read from the stdin, for example, using Scanner:

Scanner scanner = new Scanner(System.in);
String a = scanner.next();