Types of access specifiers in java with Example

Types of access specifiers in java: –Access specifiers also known as access modifiers in java, there are four types of access specifiers in java.

Types of access specifiers

• private
• protected
• default
• public

private access specifier in java example

If you make a variable or method private then it can be accessed only in the same class but can not be accessed outside the class.

private access specifier Example

1. Same Class

public class A  {
private int x=10;
private void test() {
System.out.println(100);
}
public static void main(String[] args) {
A a1 = new A();
a1.test();
System.out.println(a1.x);
}
}

output : 
100
10

2. Same Package & subclass

Package p1;
public class A  {
private int x=10;
private void test() {
System.out.println(100);
}
}
Package p1;
public class B extends A{
	public static void main(String[] args) {
		B b1 = new B();
		b1.test(); // Error
	}
}

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3. Same Package & Non-subclass

Package p1;
public class A  {
private int x=10;
private void test() {
System.out.println(100);
}
}
Package p1;
public class B {
	public static void main(String[] args) {
		A a1 = new A();
        a1.test();          // Error
        System.out.println(a1.x);      //Error
	}
}

4. Different Package & subclass

Package p1;
public class A  {
private int x=10;
private void test() {
System.out.println(100);
}
}
Package p2;
Import p1.A;
public class B extends A {
	public static void main(String[] args) {
		B b1 = new B();
        b1.test();          // Error
        System.out.println(b1.x);      //Error
	}
}

5. Different Package & Non-subclass

Package p1;
public class A  {
private int x=10;
private void test() {
System.out.println(100);
}
}
Package p2;
Import p1.A;
public class B {
	public static void main(String[] args) {
		A b1 = new A();
        a1.test();          // Error
        System.out.println(a1.x);      //Error
	}
}

protected access specifier in java example