Declaration and Access Control The object is created with new keyword At Compile-time None of these At run-time Depends on the code At Compile-time None of these At run-time Depends on the code ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control Choose the correct statement. Restriction on static methods are: I. They can only call other static methods.II. They must only access static data.III. They cannot refer this or super in any way. (II) and (III) Only (I) (I) and (II) (I), (II) and (III) Only (III) (II) and (III) Only (I) (I) and (II) (I), (II) and (III) Only (III) ANSWER DOWNLOAD EXAMIANS APP
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. None of these Any class in com.mypackage package. Any class that extends Test. Only the Test class. Any class. None of these Any class in com.mypackage package. Any class that extends Test. Only the Test class. 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) 49 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) Compile error at line 2 (must access x by writing Tester.x) Compile error at line 1 (static x must be only accessed inside static methods) 49 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) Compile error at line 2 (must access x by writing Tester.x) ANSWER DOWNLOAD EXAMIANS APP
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 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 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. 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. 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. ANSWER DOWNLOAD EXAMIANS APP
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