Question 1

11 class ClassOne{
22     public void methodOne(){
33         // ...
44     }
55     public void methodTwo(){
66         // ...
77         methodOne();
88         // ...
99     }
1010 }
1111 class ClassTwo{
1212     public static void methodThree(){
1313         // ...
1414         ClassOne c = new ClassOne();
1515         c.methodTwo();
1616         // ...
1717     }
1818     public static void main(String[] args) {
1919         // ...
2020         methodThree();
2121     }
2222 }

Consider the Java code given below. 1 class ClassOne{ 2 public void methodOne(){ 3 // ... 4 } 5 public void methodTwo(){ 6 // ... 7 methodOne(); 8 // ... 9 } 10 } 11 class ClassTwo{ 12 public static void methodThree(){ 13 // ... 14 ClassOne c = new ClassOne(); 15 c.methodTwo(); 16 // ... 17 } 18 public static void main(String[] args) { 19 // ... 20 methodThree(); 21 } 22 } During execution of Line 8 in the above code, the activation record of which method is at the top of the stack of activation records? Consider the Java code given below. class Product { private String productName; public Product(String pn) { productName = pn; } public Product(Product p) { this.productName = p.productName; } public void setProductName(String pn) { productName = pn; } public String getProductName() { return productName; } } public class InventoryTest { public static void main(String[] args) { Product p1 = new Product("Laptop"); Product p2 = new Product(p1); Product p3 = p1; p1.setProductName("Smartphone"); System.out.println(p1.getProductName()); System.out.println(p2.getProductName()); System.out.println(p3.getProductName()); } } What will the output be? Consider the Java code given below. class Shape { public void draw() { System.out.println("Drawing a generic shape."); } public void area() { System.out.println("Calculating area of the shape."); } } class Circle extends Shape { public void draw() { System.out.println("Drawing a circle."); } } class Square extends Shape { public void draw() { System.out.println("Drawing a square."); } } public class ShapeApp { static void describe(Shape sh) { sh.draw(); sh.area(); } public static void main(String[] args) { Shape circle = new Circle(); Shape square = new Square(); describe(circle); describe(square); } } Choose the correct option.