Need help: input int from console and pass it into method in different class and do math
- by christophe
i'm a beginner, Need help, Please!!!
I want to read optional number "a" from console and then store it in variable to use as passing to a different class (different .java file). and pint the sum separetely by optional inputting.
How do i code the 2 classes? thanks
/*
* DemoApp.java
*/
public class DemoApp {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int a;
System.out.println("Input one of the following 3 numbers: 100, 200, 300");
System.out.print("Enter: ");
a = input.nextInt();
TestApplication testapp = new TestApplication();
testapp.test(a);
}
}
/*
* TestApplication.java
*
*/
public class TestApplication {
private int a;
public void test(int a) {
this.a = a; // TODO: where to get the "a"? (entered by users from console)
System.out.println("The number_a was passed in: "+a);
}
protected void printNum() throws Exception {
int num;
switch (a) {
case 100:
num = num + 10;
break;
case 200:
num = num + 20;
break;
case 300:
num = num + 30;
break;
default:
// TODO: unexpected number input. throw();
break;
}
System.out.println("I got a sum number"+num);
}
}
