Lesson 5 of 15

Operators and Expressions

Use arithmetic, comparison, and logical operators in Go programs.

Beginner Friendly Runnable Example Go Programming

Learning objective: Perform calculations and create true-or-false expressions.

Arithmetic Operators

Go supports common arithmetic operators such as +, -, *, /, and %.

Comparison Operators

Comparison operators compare values and return true or false. Common examples include ==, !=, >, <, >=, and <=.

Logical Operators

Logical operators combine Boolean expressions. Use && for AND, || for OR, and ! for NOT.

Example Code

Create or update your Go file, then run the program using go run main.go.

package main

import "fmt"

func main() {
    a := 10
    b := 3

    fmt.Println("Addition:", a+b)
    fmt.Println("Remainder:", a%b)
    fmt.Println("Is a greater than b?", a > b)
    fmt.Println("Both conditions true?", a > 5 && b < 5)
}

Key points to remember

The % operator returns the remainder.
Comparison operators return Boolean values.
Use parentheses to make complex expressions clearer.

Practice Exercises

Calculate the total price of two products.
Check whether a number is greater than 100.
Use && to combine two conditions.

Continue Learning

After this lesson, continue to the next lesson or explore related tutorials on VisualStudioTutor.com.