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();

3 and 4
1 and 3
1 and 2
2 and 4

ANSWER DOWNLOAD EXAMIANS APP

Declaration and Access Control
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){}
void add(Integer... args){}
static void add(int... args, int y){}
static void add(int args...){}

ANSWER DOWNLOAD EXAMIANS APP

Declaration and Access Control
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 runtime error.
The program will lead to compilation error.
The will compile successfully and display 9 as output.
None of these
The program will compile successfully and display 10 as output.

ANSWER DOWNLOAD EXAMIANS APP

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"); } }}

None of these
Compile error - char can't be permitted in switch statement.
one
two
Compile error - Illegal modifier for the class Test; only public, abstract & final are permitted.

ANSWER DOWNLOAD EXAMIANS APP

Declaration and Access Control
Choose the correct statementpublic class Circle{ private double radius; public Circle(double radius){ radius = radius; }}

The program has a compilation error because it does not have a main method.
The program does not compile because Circle does not have a default constructor.
The program has a compilation error because we cannot assign radius to radius.
The program will compile, but we cannot create an object of Circle with a specified radius. The object will always have radius 0.

ANSWER DOWNLOAD EXAMIANS APP

Declaration and Access Control
What is the result of compiling and running the following code?public class Tester{static int x = 4;int y = 9; public Tester(){System.out.print(this.x); // line 1printVariables();}public static void printVariables(){System.out.print(x); // line 2System.out.print(y); // line 3}public static void main(String... args) { // line 4new Tester();}}

Compile error at line 1 (static x must be only accessed inside static methods)
Compile error at line 3 (static methods can't make reference to non-static variables)
Compile error at line 4 (invalid argument type for method main)
49
Compile error at line 2 (must access x by writing Tester.x)

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Declaration and Access Control