question What is the output of printf d sizeof 1 5

Programming

What is the output of printf("%d", sizeof(1.5));?

A. 4
B. 8
C. 2
D. 1

'sizeof(1.5)' returns the size of the double data type, which is typically 8 bytes.

How do you declare a pointer in C?

A. int* ptr;
B. pointer ptr;
C. *ptr int;
D. ptr* int;

Which keyword is used to prevent method overriding in Java?

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

How do you close a file in C?

A. close(file);
B. fclose(file);
C. file.close();
D. endfile(file);

What is the purpose of the 'strcat' function in C?

A. Concatenate strings
B. Copy strings
C. Compare strings
D. Convert strings

Which of the following is a marker interface in Java?

A. Runnable
B. Serializable
C. Comparable
D. Cloneable

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 does the 'sizeof' operator return for a pointer variable?

A. Size of the pointer
B. Size of the data type pointed to
C. Size of the memory allocated
D. Size of the address

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

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

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

What is the role of the 'static' keyword in C?

A. Define a constant
B. Declare a variable
C. Create a static function
D. Preserve variable value between function calls