Revisiting Java Basics

This is an introductory course to refresh your Java knowledge. Develop proficiency in Java syntax, string operations, and looping structures, establishing a strong foundation for addressing basic programming issues.

Lessons and practices

Lesson 1: Introduction to Java Collections and Strings

Refining Packing List in Java

Validating and Fixing a Packing List

Expanding an ArrayList for Packing

Verifying Item Presence and Index in Packing List

Pack Your Virtual Suitcase in Java

Space Explorer Task

Lesson 2: Introduction to Java Loops

Change For Loop to While Loop for Fruit Salad

Troubleshoot Java Fruit Inventory Tracker

Looping Through Fruits in Java

Building a Fruit Salad String in Java

Counting Non-Vowel Characters in a String

Lesson 3: Conditional Statements and Loop Control in Java

Stop Loop at Cold Temperature

Debugging a Temperature Reading Program

Weather Display Program

Controlling Flow Based on Temperature Conditions

Conditional Looping with If, Break, and Continue

Lesson 4: Handling String Data in Java

Counting Lowercase Characters in a String

Fix the Bug in String Uppercase Conversion

Encrypting Strings by Shifting Characters

Simple Text Encryption Using Caesar Cipher in Java

Encrypting Text Using a Shift Cipher in Java

Lesson 5: Basic String Manipulation in Java

Combining Astronaut Data Using Java Streams

Debugging Employee Information Management System in Java

Tokenizing and Assessing Employee Eligibility

Processing Astronaut Data in Java

Processing Space Exploration Crew Members Data

Interested in this course? Learn and practice with Cosmo!

Practice is how you turn knowledge into actual skills.