question In C how do you declare a constant

Programming

In C, how do you declare a constant?

A. const
B. constant
C. Const
D. #define

'const' is used to declare constants in C.

What is the purpose of the 'break' statement in a loop in Java?

A. Skip to the next iteration
B. Exit the loop
C. Restart the loop
D. Skip to the next loop

How do you create a thread in Java?

A. Using the run() method
B. Extending the Thread class
C. Implementing the Runnable interface
D. Both B and C

What is the output of System.out.println("Hello" + 1 + 2);?

A. Hello3
B. Hello12
C. Hello21
D. Compile error

Which Java keyword is used to implement multiple interfaces in a class?

A. using
B. extends
C. implements
D. inheritance

What is the purpose of the 'try-catch' block in Java?

A. Define exceptions
B. Throw exceptions
C. Catch and handle exceptions
D. Propagate exceptions

Which keyword is used to prevent method overriding in Java?

A. final
B. static
C. private
D. protected

What is the output of System.out.println(Math.floor(7.8));?

A. 7
B. 8
C. 7.8
D. 8.0

How do you declare an array in Java?

A. int[] arr;
B. int arr();
C. array arr;
D. array[] arr;

What is the purpose of the 'finally' block in Java?

A. Define exceptions
B. Throw exceptions
C. Catch exceptions
D. Cleanup code

What is the purpose of the 'instanceof' operator in Java?

A. Check if an object is an instance of a class
B. Compare two objects
C. Check if a class is an instance of an object
D. Check if an object is null