Challenge of JavaIsland: OOP, Polymorphism. Contribute to ByteLegendQuest/java-object-equals development by creating an account on GitHub.

Obi Ezechukwu 's blog High-Octane Java recently featured the post Compact Equals , which compares an implementation of a Java class's overridden equals method in traditional form versus one ...

java.lang.NullPointerException: Cannot invoke "Object.equals(Object)" because the return value of "com.intellij.util.xml.GenericAttributeValue.getValue()" is null ...

The more familiar you are with Object and its methods, the more you can do with your Java programs.