Circle.java

public class Circle {
 
	protected int radius;
	
	public Circle(int r) {
		radius = r;
	}
	
	public void setRadius(int r) {
		r = radius;
	}
	
	public int getRadius() {
		return radius;
	}
	
	public int getDiameter() {
		return radius * 2;
	}
	
	public double getArea() {
		return Math.PI  * Math.pow(radius, 2);
	}
 
}

Cylinder.java

public class  Cylinder  extends Circle{

	protected int height;
	
	public Cylinder(int r, int h){
		super(r);
		 height = h;
	}
	public void setHeight(int h){
		h = height;
	}
	public int getHeight(){
		return height;
	}
	public double getVolume(){
		return  Math.PI  * Math.pow(radius, 2) * height;
	}

}

Runner.java

import java.util.Scanner;
public class Runner {
	public static void main(String[] args) {
		Cylinder c = new Cylinder(7,6);
		Sphere s = new Sphere(6);
		
		Scanner scanner = new Scanner (System.in);
		System.out.print("What is this shape");  
		String shape = scanner.next(); // Get what the user types.{
		if(shape.equalsIgnoreCase("Cylinder")){
			System.out.println("the raidus of this Cylinder is  " +c.getRadius());
			System.out.println("the height of this Cylinder  is " + c.getHeight());
			System.out.println("the diamter of this Cylinder  is " + c.getDiameter());
			System.out.println("the Area of this Cylinder  is " + c.getArea());
			System.out.println("the volume of this Cylinder  is " + c.getVolume());
		}
		else if (shape.equalsIgnoreCase("Sphere")){
			System.out.println("the raidus of this Sphere is  " +s.getRadius());
			System.out.println("the volume of this Sphere  is " + s.getVolume());
			System.out.println("the diamter of this Sphere  is " + s.getDiameter());
			System.out.println("the Area of this Sphere  is " + s.getArea());
		}
		else{
			System.out.println("That shape is not applicable");
		}
	}
}

Sphere.java

public class Sphere extends Circle {
	public Sphere(int r){
		super(r);
	}
	public double getVolume(){
		return  Math.PI  * Math.pow(radius, 3) * 4/3;
	}
	public double getArea(){
		return  Math.PI  * Math.pow(radius, 2) * 4;
	}
}

Shouldn't setRadius be radius = r;