Java Data Types Exercises – Part 1

Choose the proper data type.

                class Main {
  public static void main(String[] args) {
    "" department = "Marketing";
  }
}

int String short

Choose the proper data type.

                class Main {
  public static void main(String[] args) {
    "" birthYear = 2007;
  }
}

float short

Choose the proper data type.

                class Main {
  public static void main(String[] args) {
    "" maxAttempts = 3;
  }
}

boolean byte

Choose the proper data type.

                class Main {
  public static void main(String[] args) {
    "" fileName = "log.txt";
  }
}

String boolean

Choose the proper data type.

                class Main {
  public static void main(String[] args) {
    "" exchangeRate = 1.23;
  }
}

long double

Choose the proper data type.

                class Main {
  public static void main(String[] args) {
    "" interestRate = 0.23;
  }
}

double short int

Choose the proper data type.

                class Main {
  public static void main(String[] args) {
    "" isVIP = true;
  }
}

boolean String

Choose the proper data type.

                class Main {
  public static void main(String[] args) {
    "" isEmpy = false;
  }
}

boolean String

What is the output of this code?

                class Main {
  public static void main(String[] args) {
    boolean isRegistered = true;
    System.out.println(isRegistered);
  }
}

true “true”

Java Exercises for Data Types

If you’ve faced difficulties with these exercises, take a look at Data Types Module on my Java course.

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Happy Coding!
Behnam Khani