Size of float and double in Java is 64 and 64 32 and 64 64 and 32 32 and 32 TRUE ANSWER : ? YOUR ANSWER : ?
Size of int in Java is 64 bit 32 bit 16 bit Depends on execution environment 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); }} double Exception is thrown at runtime Compilation Error float TRUE ANSWER : ? YOUR ANSWER : ?
What will the output of the following program?public class Test{ public static void main(String args[]){ float f = (1 / 4) * 10; int i = Math.round(f); System.out.println(i); }} 25 2 3 0 2.5 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following automatic type conversion will be possible? byte to int short to int long to int int to long 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);} } 10 None of these 50 Compilation Error TRUE ANSWER : ? YOUR ANSWER : ?
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); }} Error 10 20 10 20 10 20 10 10 10 20 10 100 TRUE ANSWER : ? YOUR ANSWER : ?
What is the output for the below code ?1. public class Test{2. public static void main(String[] args){3. int i = 010;4. int j = 07;5. System.out.println(i);6. System.out.println(j);7. }8. } Compilation fails with an error at line 3 Compilation fails with an error at line 5 8 7 None of these 10 7 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.$7); System.out.println(test.do); System.out.println(test._$); }} Compile error - $7 is not valid identifier. 7 9 0 Compile error - do is not valid identifier. 7 0 0 None of these 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 8 17 Compilation fails with an error at line 5 TRUE ANSWER : ? YOUR ANSWER : ?