The object is created with new keyword Depends on the code At run-time None of these At Compile-time TRUE ANSWER : ? YOUR ANSWER : ?
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 3 (static methods can't invoke this) Compile error at line 4 (invalid argument type for method main ) 44 Compile error at line 1 (static x must be only accessed inside static methods) Compile error at line 2 (constructors can't be static) TRUE ANSWER : ? YOUR ANSWER : ?
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 compilation error. The program will compile successfully and display 10 as output. None of these The will compile successfully and display 9 as output. The program will lead to runtime error. TRUE ANSWER : ? YOUR ANSWER : ?
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(); }} static A None of these static block A A block static A TRUE ANSWER : ? YOUR ANSWER : ?
What will be the output for the below code?public class Test{ static{ int a = 5; } public static void main(String[] args){ System.out.println(a); }} Runtime Exception 0 None of these 5 Compile with error TRUE ANSWER : ? YOUR ANSWER : ?
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"; }} xyz abc Compilation fails Compilation clean but no output None of these TRUE ANSWER : ? YOUR ANSWER : ?
What can directly access and change the value of the variable qusNo?package com.mypackage;public class Test{ private int qusNo = 100;} None of these Any class. Only the Test class. Any class in com.mypackage package. Any class that extends Test. TRUE ANSWER : ? YOUR ANSWER : ?
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(); 1 and 2 2 and 4 3 and 4 1 and 3 TRUE ANSWER : ? YOUR ANSWER : ?
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 protected. Declare the method with the keyword private. Do not declare the method with any accessibility modifiers. Declare the method with the keyword public. Declare the method with the keyword public and private. TRUE ANSWER : ? YOUR ANSWER : ?
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 - Illegal modifier for the class Test; only public, abstract & final are permitted. Compile error - char can't be permitted in switch statement. None of these two one TRUE ANSWER : ? YOUR ANSWER : ?