Learn Java

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1.Talk to the Machine

Say “Hello, World!”Quiz: “Hello, World!”Challenge: Print More Messages!Solution: Print More Messages!Do Some Math Quiz: Do Some Math Challenge: Arithmetic Operations Solution: Arithmetic Operations Remember Things Quiz: Remember Things Challenge: Store Personal Info in Java Solution: Store Personal Info in Java Work with the Text Quiz: Work with the Text Challenge: Personalize Your Java Output Solution: Personalize Your Java Output Ask the User Quiz: Ask the User Challenge: Get to Know the User Solution: Get to Know the User

2.Teach It to Think

Make Decisions Quiz: Make Decisions Challenge: Ask Favorite Number Solution: Ask Favorite Number Try and Fix Things Quiz: Try and Fix Things Challenge: Try-Catch Solution: Try-Catch Repeat Yourself Quiz: Repeat Yourself Challenge: Loop It, Then Launch It!Solution: Loop It, Then Launch It!Pick a Path Quiz: Pick a Path Project: Build a Quiz Challenge: Build a Quiz Solution: Build a Quiz

3.Give It Structure

Write Methods Quiz: Write Methods Challenge: Create a Method Solution: Create a Method Pass the Data to Methods Quiz: Pass Data to Methods Project: Return a Custom Greeting Solution: Return a Custom Greeting Bundle Variables Together Quiz: Bundle Variables Together Project: Build a Book Class Solution: Build a Book Class Create Objects Quiz: Create Objects Project: Add a Method to Your Class Solution: Add a Method to Your Class Project: Power Up the Player Profile

4.Make It Real

Create a Menu App Challenge: Level Up the Java Menu App Solution: Level Up the Java Menu App Track with Arrays and Loops Quiz: Track with Arrays and Loops Challenge: Loop Through and Analyze an Array Solution: Loop Through and Analyze an Array Challenge: Simulate with Objects Solution: Simulate with Objects Project: Interactive Adventure Story Project: Number Guessing Game Project: Personal Habit Tracker Final Project—Build a Dice Battle Game Solution: Build a Dice Battle Game

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Solution: Simulate with Objects

Solution: Simulate with Objects

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This Java program is a virtual pet simulator where the user interacts with a pet named Milo. The pet has two key attributes: hunger and happiness, both starting at a value of 5.

The Pet class defines how the pet behaves: ...