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Oracle Certified Professional: Java SE Developer 1Z0-831 (Java SE 25) · Domain 3: Using object-oriented concepts in Java

Nested, inner, local and anonymous classes

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Last reviewed September 25, 2026 · Leer en español

Java lets you declare a class inside another class or even inside a method. These nested classes keep helper types close to where they are used and can access the enclosing class's private members. There are four kinds, and the exam tests how each is created and what it can access.

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