Data Types & Variables
11.Which keyword is used to declare a constant variable in Java?
-
A. const
-
B. final
-
C. static
-
D. constant
final
final
12.What is the correct way to declare a floating-point literal in Java?
-
A. float f = 10.5;
-
B. float f = 10.5f;
-
C. float f = (float) 10.5;
-
D. Both B & C
Both B & C
Both B & C
13.What happens if you use an uninitialized instance variable in Java?
-
A. Compilation error
-
B. Runtime error
-
C. Default value is assigned
-
D. Garbage value is assigned
Default value is assigned
Default value is assigned
14.What is the default value of a boolean variable in Java?
-
A. 0
-
B. 1
-
C. true
-
D. false
false
false
15.What is the correct way to define multiple variables in a single line?
-
A. int a, b = 5, c;
-
B. int a = 5, int b = 10;
-
C. int a = 5; b = 10;
-
D. int a = b = c = 10;
int a, b = 5, c;
int a, b = 5, c;