Lesson 5 - Activity 1 - Can you use doubles and variables?

🙋 Questions
1

Time: 15 minutes

Purpose: This activity helps you get familiar with using double number operators

Introduction: You’ve seen how to add two decimal numbers together - do you think you can try a few operations on your own?

Task: Perform the following operations on double variables and print the results,

  1. Divide one integer by another
  2. Subtract one integer from another
  3. Multiply one integer by another
2 
    double decDivideTotal, devSubtractTotal, devMultiplyTotal;

    decDivideTotal = decNum1 / decNum2;
    devSubtractTotal = decNum1 - decNum2;
    devMultiplyTotal = decNum1 * decNum2;

    System.out.println("When we divide " + decNum1 + " by " + decNum2 + " we get: " + decDivideTotal);
    System.out.println("When we subtract " + decNum1 + " from " + decNum2 + " we get: " + devSubtractTotal);
    System.out.println("When we multiply " + decNum1 + " with " + decNum2 + " we get: " + devMultiplyTotal);
3

Yay - that looks right!