Java不会运行该类

Question

I was following a book on to learn java when it told me to enter this code:

package com.thekyle.hi;

class Myclass {
    int x;

    Myclass(int i) {
        x = i;
    }
}

class ParmsConsDemo {
    public static void main(String args[]) {
        Myclass t1 = new Myclass(10);
        Myclass t2 = new Myclass(88);
        System.out.println(t1.x + " " + t2.x);

    }
}// OutPut is 10 88

And it will launch a different class than this one. How do I make it launch?

Answer 1

Do this as follows

1. First, you need make sure the java file name has the same as your class name. see the red circle in the screen shot below.

2. Right click on your source code. Run As> Run Configurations... then in Run configuration pop up window, you need make sure that it is filled up with the right project name and Main class name, which is ParmsConsDemo in your case. see the screen shot below:

Answer 2

Make ParmsConsDemo public.

...
public class ParmsConsDemo {
 ...
  public static void main(String[] args){
    ..
  }
...
}