class MyClass{ MyClass(){ System.out.print("one"); } public void myMethod(){ this(); System.out.print("two"); }} public class TestClass{ public static void main(String args[]){ MyClass obj = new MyClass(); obj.myMethod(); }} two one one one Exception one one two Compilation Error None of these TRUE ANSWER : ? YOUR ANSWER : ?
public class Test { }What is the prototype of the default constructor? Test( ) None of these public Test( ) public Test(void) Test(void) TRUE ANSWER : ? YOUR ANSWER : ?
In which area of memory, the system stores parameters and local variables whenever a method is invoked? Stack Array Heap Storage Area TRUE ANSWER : ? YOUR ANSWER : ?
What will be the return type of a method that not returns any value? None of these void int double TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following options is the best for generating random integer 0 or 1? (int)Math.random() (int)Math.random() + 1 (int)(Math.random() + 0.5) (int)(Math.random() + 0.2) TRUE ANSWER : ? YOUR ANSWER : ?
What is the expected output?class Animal {Animal() {System.out.println("Animal");}}class Wild extends Animal{Wild() {System.out.println("Wild");super();}}public class Test {public static void main(String args[]) {Wild wild = new Wild();}} Animal Wild Compilation Error Runtime Exception Wild Animal TRUE ANSWER : ? YOUR ANSWER : ?
What is the expected output?public class Profile { private Profile(int w) { // line 1 System.out.print(w); } public static Profile() { // line 5 System.out.print (10); } public static void main(String args[]) { Profile obj = new Profile(50); }} 10 50 Won't compile because of line (1), constructor can't be private 50 Won't compile because of line (5), constructor can't be static TRUE ANSWER : ? YOUR ANSWER : ?
What is the output of the program?class Test{ public int display(int x, int y){ return ("The sum of x and y is " + x + y); } public static void main(String args[]){ Test test = new Test(); System.out.println(test.display(4,5)); } } None of these The sum of x and y is 45 does not compile The sum of x and y is 9 TRUE ANSWER : ? YOUR ANSWER : ?
What is the output for the below code ?class A{ public A(){ System.out.println("A"); } public A(int i){ this(); System.out.println(i); }}class B extends A{ public B(){ System.out.println("B"); } public B(int i){ this(); System.out.println(i+3); }}public class Test{ public static void main (String[] args){ new B(5); }} A B 8 A B 5 B 8 A 5 A 5 B 8 None of these TRUE ANSWER : ? YOUR ANSWER : ?
Determine Output:class A{public static void method(int i){System.out.print("Method 1");}public static int method(String str){System.out.print("Method 2");return 0;}}public class Test{ public static void main(String args[]){A.method(5);}} None of these Method 2 Compile time error as final method can't be overloaded Method 1 TRUE ANSWER : ? YOUR ANSWER : ?