Java Test - 1

Which keyword is used to create a subclass in Java?

• extends

• super

• this

• class

What is the correct syntax for declaring an array in Java?

• int arrayName[];
• int[] arrayName;
• int arrayName;
• Both A and B

Which keyword is used to define a method that cannot be overridden in a subclass?

• static

• final

• private

• public

Which keyword is used to handle exceptions in Java?

• try
• catch
• throw
• All of the above

Which of the following is a valid method declaration in Java?

• public void myMethod(int x, y)

• public void myMethod(int x, int y)

• public void myMethod(int x)

• None of the above

Which of the following is a valid declaration of a static method in a Java class?

• public static int myMethod()
• static public int myMethod()
• public int static myMethod()
• All of the above

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

• int
• double
• boolean
• String

Which of the following is not a valid way to declare an integer variable in Java?

• int x;
• int x = 5;
• int x, y;
• int x = "5";

Which of the following is true about constructors in Java?

• They have a return type.
• They have the same name as the class.
• They can be overridden in a subclass.
• They can be static.

Which of the following is a valid way to declare a constant in Java?

• public int constant = 5;
• static final int constant = 5;
• final static int constant = 5;
• All of the above