Question

I have two classes, class A and Class B.

public class A {
    B testB = new B();
    testB.setName("test"); //**Error Syntax error on token(s), misplaced constructs
                           //**(same line above) Error Syntax error on "test"
}

//in a separate file
public class B {
    public String name;
    public void setName(String name){
        this.name = name;
    }
}

Why can’t I access this function “setName” in class B within Class A? Thanks.

Answer 1

You need to call the function from within another method or a constructor.

    public class A {

      //Constructor
      public A(){
        B testB = new B();
        testB.setName("test");
      }

      //Method
      public void setup(){

        B testB = new B();
        testB.setName("test"); 
       }
    }

    /*Then in a main method or some other class create an instance of A 
and call the setup method.*/

    A a = new A();
    a.setup();