II_III Years-Java, Python, and C Quiz

Which of the following is NOT a primitive data type in Java?

• int

• float

• String

• boolean

Which keyword is used to define a constant in Java?

• const

• final

• static

• constant

What is the output of Java code System.out.println(5 + "5");?

• 10

• 55

• 5 + 5

• Error

What is the purpose of the static keyword in Java?

• To create a constant

• To allow a method or variable to be accessed without creating an instance of the class

• To prevent inheritance

• To define a global variable

Which of the following is true about method overloading?

• Methods must have the same name and return type

• Methods must have different names

• Methods must have the same name but different parameters

• Methods must have the same name and parameters

What is the default value of an int variable in Java?

• 0

• 1

• null

• undefined

Which of the following is NOT a valid access modifier in Java?

• public

• private

• protected

• global

Which of the following is the correct way to create an array in Java?

• int[] arr = new int[5];

• int arr = new int[5];

• int arr[] = new int[];

• int arr = new int[];

What is the output of the following Java code? int x = 10; if (x > 5) { System.out.println("Greater"); } else { System.out.println("Smaller"); }

• Greater

• Smaller

• Error

• None

What is the output of the following Java code? int x = 5; int y = x++ + ++x; System.out.println(y);

• 10

• 11

• 12

• 13