Programmer's Guide to Java™ Certification, A: A Comprehensive Primer, Second Edition

4.2. Defining Classes

A class declaration introduces a new reference type. It has the following general syntax:

<class modifiers> class <class name>               <extends clause> <implements clause>  // Class header{ // Class body     <field declarations>     <method declarations>     <nested class declarations>     <nested interface declarations>     <constructor declarations>     <initializer blocks>}

In the class header, the name of the class is preceded by the keyword class. In addition, the class header can specify the following information:

• scope or accessibility modifier (see Section 4.7, p. 131)

• additional class modifiers (see Section 4.8, p. 134)

• any class it extends (see Section 6.1, p. 226)

• any interfaces it implements (see Section 6.4 ...