"-" Subtraction Version 6 (Java)

Action group: Operators

Description

The action is designed to get the difference of two numbers.

Action icon


Settings of parameters

PropertyDescriptionTypeFilling exampleMandatory field
Parameters
First operandMinuendRobin.Numeric
Yes
Second operandSubtrahendRobin.Numeric
Yes
Results
ResultThe result of subtracting one number from anotherRobin.Numeric

Special conditions of use

None.

Example of use

Task

There is "Variable 1" with value 8 and "Variable 2" with value 2. It is required to find out the difference of two numbers written to these variables (Variable 1 - Variable 2), write the result to a numeric variable and display the obtained number in a dialog box. 

Solution

Use the "Subtraction" and "Show message" actions. 

Implementation

  1. Assemble a robot scheme consisting of actions: 

  2. Create a numeric variable "Variable 3" into which the result of the "Subtraction" action will be written. 

  3. Move the "Subtraction" action to the workspace and set its parameters.
      
  4. Move the "Show message" action to the workspace and set its parameters. 
     
  5. Start the robot using the "Start" button in the top panel. 

Result 

A dialog box with the total value is displayed on the screen.