JAVA

how to access child class variable in parent class in java

In simple words:

- the left side before "=" means what the object may do, 
- the right side after "=" means how an object will do.

So:

public class Parent {
    private String someVar = "Parent variable";
    public void someMethod(){
        System.out.println(someVar);
    }
}

public class Child extends Parent{
    protected String someVar = "Child variable";
    public void someMethod() {
        System.out.println(someVar);
    }
}

public class Main {
    public static void main(String[] args) {
        Parent p = new Child();
        p.someMethod();
        Parent p2 = new Parent();
        p2.someMethod();
    }
}

out:
Child variable
Parent variable

how to call child class method from parent class in java

//Hope it helps
//This is the child class
public class child
{
    public classCall()
    {
    	String str = "I am the child class accessed from parent class!!!";
    }
}
//this the parent class
class parent
{
	public static void main(String args[])
    {
    	child obj = new child(); //objext of child class is created
    	System.out.println(obj.classCall()); //'classCall method is called from child class
    }
}