Intermediate Java
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Learn to write reusable Java methods, branch with if, else and switch statements, and repeat tasks with loops through short interactive exercises.
Methods, control flow and loops are the building blocks this Java course works on. You define methods that keep code organized and avoid repetition, pass in parameters and return values, steer a program with if, else if, else and switch statements, and repeat work across arrays and Strings with loops. Short exercises such as a dice game, a grading task and an email checker put each one to work.
What You Will Achieve
- Break a Java program into reusable methods that take inputs and hand back results
- Handle several scenarios in one program by chaining conditions with logical operators
- Pick between for, foreach and while loops to process arrays and Strings
- Solve short coding challenges by combining conditionals, loops and your own methods
Program Overview
Writing Your Own Java Methods
Defines what a method is and builds custom ones, with examples such as domain and security checks, greetings, squaring and multiplication.
- What methods are
- Defining custom methods
- Adding parameters
- Returning results
Conditional Logic and Loops
Directs program behavior with branching statements, then repeats tasks with several loop types, practiced on grading, email checks, a weather reporter and batch changes.
- if, else if, and else statements
- Logical operators and switch statements
- for, foreach, and while loops
- Iterating through arrays and Strings, and breaking out of a loop
Combining Methods, Loops, and Conditionals
Joins the earlier structures into readable, reusable code through a set of practical challenges.
- Calling methods inside loops
- Challenges including Collatz, reversing and finding a maximum
- Building a workflow that finds local files
Certificate Awarded (Paid)
Complete the course to download the certificate.
Job Outlook
Methods, conditionals and loops are the everyday tools of Java programming, used by programmers and data engineers who write and maintain Java code.
Good for: Learners who have written their first lines of Java and want steady practice structuring programs with methods, branching logic and loops.
Keep in mind: Despite the Intermediate in its title it is rated Beginner, and its four chapters stay with methods, conditionals and loops.
Bottom line: Many small, concrete exercises, including a dice game, an email checker and a Collatz challenge, give each Java building block plenty of hands-on repetition.
Frequently Asked Questions
Does the course cover switch statements?
Yes. Switch statements appear in the control flow chapter after if, else if and else, and you practice them with a weather reporter exercise and a short simulation.
Which kinds of loops are practiced?
The loops chapter works through for loops, foreach loops and while loops, iterating over characters in Strings and items in arrays, and ends with a lesson on breaking out of a loop early.
What sort of examples do the method lessons use?
The method lessons use small, practical tasks: checking a domain and a security condition, printing greetings, squaring a number, greeting a name passed in as a parameter and multiplying values.
What happens in the final chapter?
The last chapter combines methods, loops and conditionals in challenges such as reversing values, calculating a new price, finding a maximum, the Collatz problem and a workflow that finds local files.
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