Methods that have same name, but different Parameter list and different definition known as_________________?
A. Overriding
B. Overloading
C. Constructor
D. none of these
Java concepts and its programming
How many keywords are available in java ?
How many keywords are available in java ?
A. 24
B. 48
C. 96
D. 192
How many primitive data types are there in Java ?
How many primitive data types are there in Java ?
A. 5
B. 6
C. 7
D. 8
Program which executes applet is known as________________?
Program which executes applet is known as________________?
A. JVM
B. virtual machine
C. applet engine
D. None of above
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); } } ?
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); } } ?
A. 127
B. -127
C. 129
D. -129
Size of float and double in Java is________________?
Size of float and double in Java is________________?
A. 32 and 64
B. 64 and 64
C. 32 and 32
D. 64 and 32
All collection classes are available in _________________?
All collection classes are available in _________________?
A. java.util package
B. java.io package
C. java.lang package
D. java.awt package
Automatic type conversion in Java takes place when________________?
Automatic type conversion in Java takes place when________________?
A. Two type are compatible and size of destination type is equal of source type.
B. Two type are compatible and size of destination type is larger than source type.
C. Two type are compatible and size of destination type is shorter than source type.
D. All of the above
Interfaces helps in which type of inheritance ?
Interfaces helps in which type of inheritance ?
A. Multiple inheritance
B. Multilevel inheritance
C. Hierarchical inheritance
D. None of above
A package is a collection of__________________?
A package is a collection of__________________?
A. Classes and Interfaces
B. Classes
C. Editing tools
D. Editing tools and Interfaces