concept class declaration in category java

This is an excerpt from Manning's book Java SE 11 Programmer I Certification Guide MEAP V03. Login to get full access to this book.

The package statement can’t appear within a class declaration or after the class declaration. The following code will fail to compile:

Figure 3.4 Components of a class declaration

Table 3.1 summarizes the compulsory and optional components.

Table 3.1 Components of a class declaration
Mandatory	Optional
Keyword class	Access modifier, such as public
Name of the class	Nonaccess modifier, such as final
Class body, marked by the opening and closing curly braces, {}	Keyword extends together with the name of the base class
	Keyword implements together with the names of the interfaces being implemented

Class declarations and class definitions are components of a Java class.

This is an excerpt from Manning's book OCA Java SE 8 Programmer I Certification Guide. Login to get full access to this book.

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The package statement can’t appear within a class declaration or after the class declaration. The following code will fail to compile:

The components of the preceding class declaration can be illustrated as shown in figure 1.5.

Figure 1.5. Components of a class declaration

Table 1.1 summarizes the compulsory and optional components.