Determine output:class A{ public static void main(String args[]){ int x; x = 10; if(x == 10){ int y = 20; System.out.print("x and y: "+ x + " " + y); y = x*2; } y = 100; System.out.print("x and y: " + x + " " + y); }} 10 20 10 20 10 20 10 100 10 20 10 10 Error TRUE ANSWER : ? YOUR ANSWER : ?
Determine output:public class Test{ int a = 10; public void method(int a){ a += 1; System.out.println(++a); } public static void main(String args[]){ Test t = new Test(); t.method(3); }} 4 None of these 12 11 5 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); }} None of these -127 Compiler error 129 2 TRUE ANSWER : ? YOUR ANSWER : ?
Automatic type conversion in Java takes place when Two type are compatible and size of destination type is equal of source type. Two type are compatible and size of destination type is shorter than source type. All of these Two type are compatible and size of destination type is larger than source type. TRUE ANSWER : ? YOUR ANSWER : ?
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 true Will not compile as boolean can never be static Prints false 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 7 0 0 Compile error - $7 is not valid identifier. Compile error - do is not valid identifier. None of these TRUE ANSWER : ? YOUR ANSWER : ?
What would be the output of the following fraction of code ?int Integer = 34 ;char String = 'S' ;System.out.print( Integer ) ;System.out.print( String ) ; S Does not compile as Integer and String are API class names. 34 S 34 Throws exception. 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(); }} Compile error - static variable must be initialized before use. 0 0 0 None of these 0 true 0 0 false 0 TRUE ANSWER : ? YOUR ANSWER : ?
The smallest integer type is ......... and its size is ......... bits. short, 16 byte, 8 short, 16 short, 8 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 ) ; }} 22 Compilation Error 21 Throws Exception 20 TRUE ANSWER : ? YOUR ANSWER : ?