DECLARATION AND ACCESS CONTROL QUIZ

The object is created with new keyword

At Compile-time

None of these

At run-time

Depends on the code

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Name the keyword that makes a variable belong to a class, rather than being defined for each instance of the class.

volatile

static

final

native

abstract

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What is the result of compiling and running the following code?public class Tester{static int x = 4;public Tester(){System.out.print(this.x); // line 1Tester();}public static void Tester(){ // line 2System.out.print(this.x); // line 3}public static void main(String... args){ // line 4new Tester();}}

Compile error at line 3 (static methods can't invoke this)

Compile error at line 1 (static x must be only accessed inside static methods)

Compile error at line 4 (invalid argument type for method main )

44

Compile error at line 2 (constructors can't be static)

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Determine output:public class InitDemo{static int i = demo();static{ System.out.print(i); }InitDemo(){System.out.print("hello1");}public static void main(String... args){ System.out.print("Hello2");} static int demo(){ System.out.print("InsideDemo");return 10;}}

InsideDemo 10 Hello2

InsideDemo 10 Hello2 hello1

Compilation error.

IllegalArgumentException is thrown at runtime.

Hello2 InsideDemo 10

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Consider the following two classes declared and defined in two different packages, what can be added in class B to form what considered a correct access to class A from main() method of class B?package subPackage;public class A { }package anotherPackage;// line 1public class B{public static void main(String[] args){// line 2}}1. At line1 add noting; At line2 add: new A();2. At line 1 add: import package.; at line 2 add : new subPackage.A();3. At line 1 add: import subPackage.; at line 2 add : new A();4. At line 1 add: import subPackage.A; at line 2 add : new A();

2 and 4

1 and 3

1 and 2

3 and 4

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A method within a class is only accessible by classes that are defined within the same package as the class of the method. Which one of the following is used to enforce such restriction?

Do not declare the method with any accessibility modifiers.

Declare the method with the keyword public and private.

Declare the method with the keyword protected.

Declare the method with the keyword private.

Declare the method with the keyword public.

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What will be the output after the following program is compiled and executed?public class Test{ public static void main(String args[]){ int x = 10; x = myMethod(x--); System.out.print(x); } static int myMethod(final int x){ return x--; }}

The program will lead to compilation error.

The will compile successfully and display 9 as output.

None of these

The program will lead to runtime error.

The program will compile successfully and display 10 as output.

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What will be the output after compiling and running following program code?public class Test{ static int a; public static void main(String[] args){ System.out.println("one"); call(1); } static void call(int a){ this.a=10; System.out.println("two "+a); }}

one two 1

Compile time error.

None of these

one two 0

one two 10

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What is the output for the below code ?public class A{ static{ System.out.println("static"); } { System.out.println("block"); } public A(){ System.out.println("A"); } public static void main(String[] args){ A a = new A(); }}

static A

None of these

static block A

A

A block static

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What can directly access and change the value of the variable qusNo?package com.mypackage;public class Test{ private int qusNo = 100;}

Any class that extends Test.

Any class.

Only the Test class.

Any class in com.mypackage package.

None of these

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