abstract class vehicle{ abstract public void speed(); } class car extends vehicle{ public static void main (String args[]) { vehicle ob1; ob1=new car(); //1 }}

Keep practicing — related questions

• class C1{ public void m1(){ // 1 } } class C2 extends C1{ //2 private void m1(){ } }
• Following code will result in: class A { public static void main(String [] args) {B b = new A(); }} class B...
• Following code will result in: class A { public static void main(String [] args) {A a = new B(); }} class B...
• class A2{ static void doprint(){ System.out.println("A2"); } } class B2 extends A2{ static void doprint(){ ...
• Following code will result in: class A { public static void main(String [] args) {A a = new B(); }} class B...
• 1. abstract class C1{ public void m1(){ //1 }} abstract class C2{ public void m2(){ //2 }}
• Given: class TestA { public void start() { System.out.println(”TestA”); } } public class TestB extends Test...
• class base { base() { System.out.println("base"); } base(int i1) { } } class Super extends base { Super() {...