Common modifiers used by classes and their components in Java

common modifiers used by classes and their components in Java
(1) Classification of modifiers:　　
Permission modifiers:private, default, protected,　　　　 public
status modifiers:static, Final　　　　
abstraction modifier:　　　 Abstract
(2) modifiers used for common classes and their composition:　　
of the Modified class:　　　　
There are: default, public, final, abstract　　　　　　
examples are as follows:
class Demo {}//default modifier
Public class Demo {}
the final class Demo {}///End classes cannot be inherited.
abstract class Demo {}//Abstraction classes
modifiers for common classes: public class Demo {}　　　　　　
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to modify a member variable:　　　　
available: Private, default, protected, public, static, final
examples are as follows:　　　　　　　　
private int x = ten;
int y =;
protected int z =;
public int a = +;
Public final int b =;
public static int c =;
Public static final int d =;
modifiers for common member variables: private int x = ten;　　　　　　
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to modify the construction method:
available: Private, default, protected, public
examples are as follows:
Private Demo () {}
Demo (String name) {}
protected Demo (String name, int age) {}
Public Demo (string name, int age, string address) {}
modifiers for common construction methods: public Demo (string name, int age, string address) {}　　　　　　
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to modify a member method:
available: Private, default, protected, public, static, final, abstract
examples are as follows:
private void Show () {}
void Show () {}
protected void Show () {}
Public Void Show () {}
static void Show () {}
abstract void Show ();
final void Show () {}
modifiers for common member methods: public void Show () {}　　　　　　
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(3) Other common combination rules:
examples are as follows:
to modify a member variable:　　　　　　
Public static final int x = 10;//defines a static final variable (constant)
to modify a member method:　　　　　　
Public static void Show () {}
Public final void Show () {}
Public abstract void Show ();
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Common modifiers used by classes and their components in Java