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;} Any class that extends Test. None of these Any class in com.mypackage package. Any class. Only the Test class. Any class that extends Test. None of these Any class in com.mypackage package. Any class. Only the Test class. ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control Suppose a class has public visibility. In this class we define a protected method. Which of the following statements is correct? From within protected methods you do not have access to public methods. In a class, you cannot declare methods with a lower visibility than the visibility of the class in which it is defined. This method is accessible from within the class itself and from within all classes defined in the same package as the class itself. This method is only accessible from inside the class itself and from inside all subclasses. From within protected methods you do not have access to public methods. In a class, you cannot declare methods with a lower visibility than the visibility of the class in which it is defined. This method is accessible from within the class itself and from within all classes defined in the same package as the class itself. This method is only accessible from inside the class itself and from inside all subclasses. 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;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 1 (static x must be only accessed inside static methods) Compile error at line 4 (invalid argument type for method main ) Compile error at line 3 (static methods can't invoke this) Compile error at line 2 (constructors can't be static) 44 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 ) Compile error at line 3 (static methods can't invoke this) Compile error at line 2 (constructors can't be static) 44 ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control What is the result of compiling and running the following code?class Base{ private Base(){ System.out.print("Base"); }}public class test extends Base{ public test(){ System.out.print("Derived"); } public static void main(String[] args){ new test(); }} Exception is thrown at runtime Derived BaseDerived Compilation Error Exception is thrown at runtime Derived BaseDerived Compilation Error ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control 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 ");}} pre r1 r4 b1 b2 r2 r3 post Compilation fail r1 r4 pre b1 b2 post r1 r4 pre b1 b2 r3 r2 post r1 r4 pre b1 b2 post r3 r2 pre r1 r4 b1 b2 r2 r3 post Compilation fail r1 r4 pre b1 b2 post r1 r4 pre b1 b2 r3 r2 post r1 r4 pre b1 b2 post r3 r2 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"); } }} two None of these Compile error - Illegal modifier for the class Test; only public, abstract & final are permitted. Compile error - char can't be permitted in switch statement. one two None of these Compile error - Illegal modifier for the class Test; only public, abstract & final are permitted. Compile error - char can't be permitted in switch statement. one ANSWER DOWNLOAD EXAMIANS APP
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