static

Initialization Blocks in Java

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Apart from methods and constructors, Initialization Blocks are the third place in a Java Program where operations can be performed. Initialization Blocks come in two flavours:

  • Static Initialization Blocks: Runs first when the class is first loaded. Declared by using the keyword “Static”
  • Instance Initialization Blocks: Runs every time when the instance of the class is created.

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Inner Classes

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Inner Classes are the classes which are declared inside an outer class i.e classes nesting with in outer class. They can be either static or non static. Static Inner classes are also called as Nested Classes. Inner classes come in Four flavors namely:
Inner Classes

1. Static Member Classes
2. Member Classes
3. Local Classes
4. Anonymous classes

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Local and Anonymous Inner Classes

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Inner Classes are the classes which are declared inside an outer class i.e classes nesting with in outer class. They can be either static or non static. Static Inner classes are also called as Nested Classes. Inner classes come in Four flavors namely:

1. Static Member Classes
2. Member Classes
3. Local Classes
4. Anonymous classes

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