Java Tutorials

Anonymous classes

• Use these when the weight of a full class seems too much for your needs.
• Extend a class or implement an interface.
• Defined at the same time they are created with new.
• Defined in the new expression.
• Cannot have their own constructors.
• Can easily become hard to read.
• Avoid anonymous classes longer than six lines.
• Use them only in the simplest of expressions.