How To Download And Install PostgreSQL 12.3 Latest Release In 64 Bit Windows 10 in 2020 || Knowledge 360

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Hello Friends, I am Akram and in this blog, I will tell you how to download and install the PostgreSQL 12.3 latest release in your windows 10 PC of 64 bit.

1. Click this link to download the installation file, which is of 190 MBs.

2. Install the file and follow step by step procedure.







3. When the installation is done, click on the finish.








4. Search for PgAdmin.







5. Now Enter the password you had given while installing.







Note:- Please take a screenshot of the configuration summary. If you forgot to, please watch the video again and uninstall the file and again install it.

What Are The Access Specifiers/Modifiers In Java || Learn Java In Hindi

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Access Modifiers in java

1. private access modifier

2. Role of private constructor

3. default access modifier

4. protected access modifier

5. public access modifier

6. Applying access modifier with method
overriding

There are
two types of modifiers in java: access modifiers and non-access
modifiers.

The access
modifiers in java specifies accessibility (scope) of a data member, method,
constructor or class.

There are 4
types of java access modifiers:

1. private
2. default
3. protected
4. public

There are
many non-access modifiers such as static, abstract, synchronized, native,
volatile, transient etc. Here, we will learn access modifiers.

Source Codes

-------------------------

A.java

public class A

{

public void m1()

{

System.out.println("public : m1 method");

}

protected void m2()

{

System.out.println("protected : m2 method");

}

void m3() // default - no access

{

System.out.println("no access : m3 method");

}

private void m4()

{

System.out.println("private : m4 method");

}

void call1()

{

m1();

m2();

m3();

m4();

}

}

class test

{

public static void main(String args[])

{

A a1 = new A();

a1.call1();

}

}

B.java

class B extends A

{

void call2()

{

// m4(); // private method can't be accessed here outside the class

// rest methods can be accessed easily here

m1();

m2();

m3();

}

}

class test1

{

public static void main(String srags[])

{

B b1 = new B();

b1.call2();

}

}

C.java

class C

{

void call3()

{

new A().m1();

new A().m2();

new A().m3();

}

}

class test2

{

public static void main(String args[])

{

C c1 = new C();

c1.call3();

}

}