Java Week 2 - Day 3 & 4

It is used to provide common behavior among different classes

• Encapsulation

• Abstraction

• Interface

• Inner Class

What is the default access modifier in Java?

• public

• private

• package-private

• protected

Variables declared as final are modified once, in the declaration and inside a method

• True

• False

Determine the output of the code below

• testVariable is Me

• testVariable is Not Me

• Compilation error

Considering the code below, what will be the return value of getInstanceCount() after instantiating it 10 times?

• 0

• 1

• 2

• 10

Among the declarations below, what is the correct and best way to declare a method that computes for a loan interest?

• public void computeMonthlyInterest(double amount, double rate){...}

• public void COMPUTE-MONTHLY-INTEREST(double amount, double rate){...}

• public double InterestCalculator(double amount, double rate){...}

• public double computeMonthlyInterest(double amount, double rate){...}

Abstract methods should always be implemented

• True

• False

What does the highlighted code implements?

• Interface

• Abstract Class

• Bounded Type Parameter

• Encapsulation

What annotation is used in implementing the abstract methods?

• @Overload

• @Override

• @Implements

• @Extends

Abstract class cannot be instantiated nor subclassed

• True

• False