JAVA CONSTRUCTORS AND METHODS QUIZ

class MyClass{int i;int j;public MyClass(int i, int j){this.i = i;this.j = j;}public void call(){System.out.print("One");}}public class Test{public static void main(String args[]){MyClass m = new MyClass(); //line 1m.call(); //line 2}}

One

Compilation succeed but no output.

Compilation fails due to an error on line 2

Compilation fails due to an error on line 1

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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);}}

Method 1

None of these

Method 2

Compile time error as final method can't be overloaded

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What is the output for the below code ?1. public class A{2. int add(int i, int j){3. return i+j;4. }5. }6. public class B extends A{7. public static void main(String argv[]){8. short s = 9;9. System.out.println(add(s,6));10. }11.}

Compile fail due to error on line no 8

15

Compile fail due to error on line no 2

None of these

Compile fail due to error on line no 9

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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); }}

B 8 A 5

None of these

A B 5

A 5 B 8

A B 8

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The variables declared in a class for the use of all methods of the class are called

None of these

instance variables

objects

reference variables

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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

None of these

one Exception

Compilation Error

one one two

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public class Test { }What is the prototype of the default constructor?

None of these

public Test(void)

Test( )

Test(void)

public Test( )

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Which of these is a legal definition of a method named examveda assuming it throws IOException, and returns void. Also assume that the method does not take any arguments. Select the one correct answer.

void examians(void) throws IOException{}

void examians() throw IOException{}

void examians() throws IOException{}

examians() throws IOException{}

void examians() {} throws IOException

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Given the following piece of code:class Person{ public int number;}public class Test{ public void doIt(int i , Person p){ i = 5; p.number = 8; } public static void main(String args[]){ int x = 0; Person p = new Person(); new Test().doIt(x, p); System.out.println(x + " " + p.number); }}What is the result?

0 0

5 0

5 8

0 8

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The implicit return type of a constructor is

A class object in which it is defined.

There is no return type.

None of these

void

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