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();

Declaration and Access Control
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

3 and 4

1 and 2

1 and 3

2 and 4

3 and 4

1 and 2

1 and 3

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Declaration and Access Control
The object is created with new keyword

Depends on the code

At run-time

At Compile-time

None of these

Depends on the code

At run-time

At Compile-time

None of these

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

Only the Test class.

Any class.

Any class in com.mypackage package.

Any class that extends Test.

None of these

Only the Test class.

Any class.

Any class in com.mypackage package.

Any class that extends Test.

None of these

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Declaration and Access Control
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 public.

Do not declare the method with any accessibility modifiers.

Declare the method with the keyword protected.

Declare the method with the keyword private.

Declare the method with the keyword public and private.

Declare the method with the keyword public.

Do not declare the method with any accessibility modifiers.

Declare the method with the keyword protected.

Declare the method with the keyword private.

Declare the method with the keyword public and private.

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Declaration and Access Control
What will be the output for the below code?static public class Test{ public static void main(String[] args){ char c = 'a'; switch(c){ case 65 : System.out.println("one");break; case 'a': System.out.println("two");break; case 3 : System.out.println("three"); } }}

Compile error - char can't be permitted in switch statement.

two

Compile error - Illegal modifier for the class Test; only public, abstract & final are permitted.

one

None of these

Compile error - char can't be permitted in switch statement.

two

Compile error - Illegal modifier for the class Test; only public, abstract & final are permitted.

one

None of these

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Declaration and Access Control
What will be the output?public class Test{static{int a = 5;}public static void main(String args[]){new Test().call();}void call(){this.a++;System.out.print(this.a);}}

Compile with error

6

Runtime Exception

5

0

Compile with error

6

Runtime Exception

5

0

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Declaration and Access Control

Declaration and Access Control The object is created with new keyword

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

Declaration and Access Control 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?

Declaration and Access Control What will be the output for the below code?static public class Test{ public static void main(String[] args){ char c = 'a'; switch(c){ case 65 : System.out.println("one");break; case 'a': System.out.println("two");break; case 3 : System.out.println("three"); } }}

Declaration and Access Control What will be the output?public class Test{static{int a = 5;}public static void main(String args[]){new Test().call();}void call(){this.a++;System.out.print(this.a);}}

Declaration and Access Control
The object is created with new keyword

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

Declaration and Access Control
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?

Declaration and Access Control
What will be the output for the below code?static public class Test{ public static void main(String[] args){ char c = 'a'; switch(c){ case 65 : System.out.println("one");break; case 'a': System.out.println("two");break; case 3 : System.out.println("three"); } }}

Declaration and Access Control
What will be the output?public class Test{static{int a = 5;}public static void main(String args[]){new Test().call();}void call(){this.a++;System.out.print(this.a);}}