DECLARATION AND ACCESS CONTROL QUIZ

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

one two 10

Compile time error.

one two 0

None of these

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What will be the output?public class Test{ public static void main(String[] args){ String value = "abc"; changeValue(value); System.out.println(value); } public static void changeValue(String a){ a = "xyz"; }}

None of these

Compilation clean but no output

abc

xyz

Compilation fails

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Determine output:class A{{System.out.print("b1 ");}public A(){System.out.print("b2 ");}}class B extends A{static{System.out.print("r1 ");}public B(){System.out.print("r2 ");}{System.out.print("r3 ");}static{System.out.print("r4 ");}}public class Test extends B{public static void main(String[] args){System.out.print("pre ");new Test();System.out.println("post ");}}

r1 r4 pre b1 b2 r3 r2 post

r1 r4 pre b1 b2 post

Compilation fail

pre r1 r4 b1 b2 r2 r3 post

r1 r4 pre b1 b2 post r3 r2

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The object is created with new keyword

At Compile-time

At run-time

Depends on the code

None of these

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Choose all the lines which if inserted independently instead of "//insert code here" will allow the following code to compile:public class Test{ public static void main(String args[]){ add(); add(1);add(1, 2); }// insert code here}

static void add(int...args){}

static void add(int args...){}

static void add(int... args, int y){}

static void add(int[]... args){}

void add(Integer... args){}

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A package is a collection of

Classes and Interfaces

Editing tools and Interfaces

Interfaces

Classes

Editing tools

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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?

Declare the method with the keyword private.

Do not declare the method with any accessibility modifiers.

Declare the method with the keyword public and private.

Declare the method with the keyword public.

Declare the method with the keyword protected.

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Which statements are most accurate regarding the following classes?class A{ private int i; protected int j;}class B extends A{ private int k; protected int m;}

An object of B contains data fields j, m.

An object of B contains data fields k, m.

An object of B contains data fields j, k, m.

An object of B contains data fields i, j, k, m.

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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(); }}

A

A block static

None of these

static block A

static A

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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.

abstract

volatile

final

native

static

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