Program stability concepts in Go - Mini Project: Build & Apply

Program Stability Concepts in Go

📖 Scenario: You are building a simple Go program that processes a list of tasks with their durations. You want to make sure the program handles unexpected situations gracefully to stay stable.

🎯 Goal: Build a Go program that creates a map of tasks and durations, sets a maximum allowed duration, filters tasks that exceed this duration, and prints the filtered tasks. This teaches how to keep a program stable by controlling input and output.

📋 What You'll Learn

Create a map called tasks with exact entries: "Email": 30, "Meeting": 90, "Coding": 120, "Break": 15

Create an integer variable called maxDuration and set it to 60

Use a for loop with variables task and duration to iterate over tasks and create a new map filteredTasks with only tasks having duration less than or equal to maxDuration

Print the filteredTasks map

💡 Why This Matters

🌍 Real World

Filtering tasks by duration helps keep programs stable by avoiding processing tasks that take too long.

💼 Career

Understanding how to filter and control data flow is important for writing reliable and maintainable Go programs in software development.

1

Create the initial tasks map

Create a map called tasks with these exact entries: "Email": 30, "Meeting": 90, "Coding": 120, "Break": 15

Go

# Create the tasks map with exact entries
# Your code here

Hint

Use map[string]int to create a map with string keys and int values.

2

Set the maximum allowed duration

Create an integer variable called maxDuration and set it to 60

Go

package main

func main() {
    tasks := map[string]int{"Email": 30, "Meeting": 90, "Coding": 120, "Break": 15}
    // Create maxDuration variable and set to 60
    // Your code here
}

Hint

Use := to declare and assign maxDuration in one step.

3

Filter tasks by duration

Use a for loop with variables task and duration to iterate over tasks and create a new map called filteredTasks with only tasks having duration less than or equal to maxDuration

Go

package main

func main() {
    tasks := map[string]int{"Email": 30, "Meeting": 90, "Coding": 120, "Break": 15}
    maxDuration := 60
    // Create filteredTasks map
    // Use for loop to add tasks with duration <= maxDuration
    // Your code here
}

Hint

Use make(map[string]int) to create an empty map. Use for task, duration := range tasks to loop.

4

Print the filtered tasks

Write fmt.Println(filteredTasks) to print the filteredTasks map

Go

package main

import "fmt"

func main() {
    tasks := map[string]int{"Email": 30, "Meeting": 90, "Coding": 120, "Break": 15}
    maxDuration := 60
    filteredTasks := make(map[string]int)
    for task, duration := range tasks {
        if duration <= maxDuration {
            filteredTasks[task] = duration
        }
    }
    // Print filteredTasks map
    // Your code here
}

Hint

Use fmt.Println to print the map. The output should show only tasks with duration 60 or less.