Java Programming For Beginners - Theory+151 Solved Exercises

Install the java development kit and intellij community edition to run a java project, then create a new project and select the java 11 jdk.

Learn to create a Java project, write a main method, and print messages with System.out.println while exploring data types such as strings, booleans, characters, integers, doubles, floats, and longs.

Practice solving Java if-else exercises using Scanner input to build a number guessing game, leap year checker, age in dog years, beer advice, and a three-grade calculator.

Learn how the switch statement in Java evaluates multiple values with case blocks, break, and a default fallback, demonstrated through a traffic light and month-to-season examples.

Master switch statements through practical Java exercises, from grading logic for primary to general and high school, rock-paper-scissors, favorite language, character type checks, and a daily schedule example.

Master while loop exercises in Java, reading numbers with Scanner, computing averages, using break, and exploring random numbers for a guessing game and a file size calculator.

Practice arraylist exercises 3 by entering three grades per subject with a scanner, validate 1–10, compute per-subject and final averages, and note the bonus on array vs arraylist.

Implement methods to print numbers in descending and ascending order using arrays and array lists, swap elements, print results, and a Fibonacci method with index and loop.