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. (I), (II) and (III) Only (I) Only (III) (I) and (II) (II) and (III) TRUE ANSWER : ? YOUR ANSWER : ?
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);}} Runtime Exception Compile with error 0 6 5 TRUE ANSWER : ? YOUR ANSWER : ?
Determine output:public class InitDemo{static int i = demo();static{ System.out.print(i); }InitDemo(){System.out.print("hello1");}public static void main(String... args){ System.out.print("Hello2");} static int demo(){ System.out.print("InsideDemo");return 10;}} InsideDemo 10 Hello2 hello1 Compilation error. Hello2 InsideDemo 10 InsideDemo 10 Hello2 IllegalArgumentException is thrown at runtime. 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 A block static static block A A TRUE ANSWER : ? YOUR ANSWER : ?
What will be the output after compiling and running following program code?public class Test{ static int a; public static void main(String[] args){ System.out.println("one"); call(1); } static void call(int a){ this.a=10; System.out.println("two "+a); }} None of these one two 1 one two 0 Compile time error. one two 10 TRUE ANSWER : ? YOUR ANSWER : ?
A package is a collection of Classes Editing tools Editing tools and Interfaces Interfaces Classes and Interfaces 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;} Only the Test class. Any class in com.mypackage package. Any class. Any class that extends Test. None of these 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"; }} Compilation fails Compilation clean but no output None of these xyz abc 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 public and private. Declare the method with the keyword public. Declare the method with the keyword private. Do not declare the method with any accessibility modifiers. Declare the method with the keyword protected. TRUE ANSWER : ? YOUR ANSWER : ?
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, int y){} void add(Integer... args){} static void add(int...args){} static void add(int args...){} TRUE ANSWER : ? YOUR ANSWER : ?