Java Challengers #4: Comparing Java objects with equals() and hashcode()

Java Challengers #4: Comparing Java objects with equals() and hashcode()

What is the contract between equals() and hashcode()? Learn how these methods work together when comparing Java objects

09/20/18

Java Challengers #3: Polymorphism and inheritance
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Java Challengers #3: Polymorphism and inheritance

Challenge yourself, with this brain-teasing introduction to method invocation in polymorphic method calls

07/19/18

Java Challengers #2: String comparisons

Java Challengers #2: String comparisons

How String methods, keywords, and operators process comparisons in the String pool

05/29/18

Java Challengers #1: Method overloading in the JVM
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Java Challengers #1: Method overloading in the JVM

Test your mind with the first Java Challenger in a new series. Can you outthink the Java virtual machine?

04/25/18

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