Modern Java: interview exercises

Modern Java: 6 test-checked interview exercises (Text blocks and formatted, A switch expression), each beside a worked example, with tests as you go. Free.

1. Text blocks and formatted
2. A switch expression
3. Pattern matching for switch
4. Record patterns
5. Sequenced collections
6. Immutable copies

Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Progress is saved in your browser, and in your account if you sign in.

More Java topics

• Strings
• Collections
• Streams & lambdas
• Records, classes & interfaces
• Generics & Optional
• Exceptions & validation
• Algorithms & recursion

All Java exercises · Other languages and frameworks