The following program:public class Test{ static boolean isOK; public static void main(String args[]){ System.out.print(isOK); } } Will not compile as boolean is not initialized Prints false Will not compile as boolean can never be static Prints true TRUE ANSWER : ? YOUR ANSWER : ?
What is the output for the below code ?class A{ int k; boolean istrue; static int p; public void printValue(){ System.out.print(k); System.out.print(istrue); System.out.print(p); }}public class Test{ public static void main(String argv[]){ A a = new A(); a.printValue(); }} 0 true 0 None of these Compile error - static variable must be initialized before use. 0 0 0 0 false 0 TRUE ANSWER : ? YOUR ANSWER : ?
In Java byte, short, int and long all of these are unsigned Both of the above None of these signed TRUE ANSWER : ? YOUR ANSWER : ?
The smallest integer type is ......... and its size is ......... bits. byte, 8 short, 16 short, 16 short, 8 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following automatic type conversion will be possible? long to int int to long byte to int short to int TRUE ANSWER : ? YOUR ANSWER : ?
What is the output for the below code?public class Test{ int _$; int $7; int do; public static void main(String argv[]){ Test test = new Test(); test.$7=7; test.do=9; System.out.println(test.$7); System.out.println(test.do); System.out.println(test._$); }} 7 9 0 None of these Compile error - do is not valid identifier. Compile error - $7 is not valid identifier. 7 0 0 TRUE ANSWER : ? YOUR ANSWER : ?
What is the output of the following program?public class Test{static int x = 10 ; public static void main(String[] a){ Test test = new Test( ) ; Test test1 = new Test( ) ; test.x += 1 ; System.out.println( test.x + test1.x ) ; }} Throws Exception 21 22 20 Compilation Error TRUE ANSWER : ? YOUR ANSWER : ?
What will be output of following program?public class Test{ public static void main(String[] args){ byte b=127; b++; b++; System.out.println(b); }} -127 2 Compiler error 129 None of these TRUE ANSWER : ? YOUR ANSWER : ?
The following fraction of codedouble STATIC = 2.5 ;System.out.println( STATIC ); Prints 2.5 None of these Rraises an error as STATIC is used as a variable which is a keyword Raises an exception TRUE ANSWER : ? YOUR ANSWER : ?