Size of float and double in Java is 32 and 32 64 and 64 64 and 32 32 and 64 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); }} 129 -127 2 Compiler error None of these TRUE ANSWER : ? YOUR ANSWER : ?
Size of int in Java is 16 bit 64 bit Depends on execution environment 32 bit TRUE ANSWER : ? YOUR ANSWER : ?
What will be output of the following program code?public class Test{public static void main(String[] a){short x = 10;x = x*5;System.out.print(x);} } None of these Compilation Error 50 10 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(); }} None of these 0 0 0 0 false 0 Compile error - static variable must be initialized before use. 0 true 0 TRUE ANSWER : ? YOUR ANSWER : ?
Determine output:public class Test { static void test(float x){ System.out.print("float"); } static void test(double x){ System.out.print("double"); } public static void main(String[] args){ test(99.9); }} float Compilation Error double Exception is thrown at runtime TRUE ANSWER : ? YOUR ANSWER : ?
Automatic type conversion in Java takes place when 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. Two type are compatible and size of destination type is equal of 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 can never be static Will not compile as boolean is not initialized Prints false Prints true TRUE ANSWER : ? YOUR ANSWER : ?
What will be the output for the below code ?1. public class Test{2. int i=8;3. int j=9;4. public static void main(String[] args){5. add();6. }7. public static void add(){8. int k = i+j;9. System.out.println(k);10. }11. } 0 None of these Compilation fails with an error at line 5 Compilation fails with an error at line 8 17 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 ) ; }} Compilation Error 21 20 22 Throws Exception TRUE ANSWER : ? YOUR ANSWER : ?