Java programs display different access levels

Access modifiers are used to set the feature of visibility of some particular classes, interfaces, variables, methods, constructors, data members, and the setter methods in Java programming language.

In Java environment, we have different types of access modifiers.

• Default - If we declare a function, it will only be visible in a specific package.

• Private - If we declare a function, it will be visible only within a specific class.

• Protected- If we declare a function, it will be visible only within a specific package or in all subclasses.

• Public - If we declare a function, it will be visible everywhere.

Example

Example

class Study {
   public void method16() {...}

   private void method7() {...}
}

Use Java to demonstrate algorithms for different access levels

The following are possible algorithms to show different access levels using Java:

• Step one - start.

• Step 2 - Define a class that represents a specific object.

• Step 3 - Define instance variables in the class.

• Step 4 - Specify access modifiers. (There are three access modifiers in Java: private, protected and public.)

• Step 5 - Use private modifier on variables.

• Step 6 - Use the protected keyword to access a class and subclasses.

• Step 7 - Access anywhere using the public modifier.

• Step 8 - In order to manipulate variables, declare accessor and modifier methods.

• Step 9 - Termination.

Syntax for displaying different access levels using Java

Java program defines default modifiers:

package a1;
class Tutorialspoint{
   void display(){
      System.out.println("Welcome To Tutorialspoint!");
   }
}

Java program defines private modifiers:

package a1;
class A07{
   private void display(){
      System.out.println("Welcome To Tutorialspoint!");
   }
}
class B07{
   public static void main(String args[]){
      A obj = new A();
      obj.display();
   }
}

Java program defines protected modifier:

package a1;
public class A07{
   protected void display(){
       System.out.println("Welcome To Tutorialspoint!");
   }
}

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Java program defines public modifier:

package a1;
public class A{
   public void display(){
       System.out.println("Welcome To Tutorialspoint!");
   }
}

In this Java syntax, we explain how to display different access levels by using the Java environment.

How to follow

• Method 1 - Use a single class to display the scope of access modifiers.

• Method 2−Use two different classes in the same package to show the scope of access modifiers.

• Method 3 - Access private data members of a class.

• Method 4 − Use all access modifiers in different codes in a general way.

Use a single class to display the scope of access modifiers

In this particular Java code, we are using various types of access modifiers in a class.

Example 1

Example 1

import java.io.*;
public class tutorialspoint {
   public static void method07(){
      System.out.println("This method uses Public access modifier - method07");
   }
   private static void method16(){
      System.out.println("This method uses Private access modifier-method16");
   }
   protected static void method10(){
      System.out.println("This method uses Protected access modifier-method10");
   }
   static void method9701(){
      System.out.println("This method uses Default access modifier-method10");
   }
   public static void main(String[] args){
      System.out.println("Various access modifiers being used in the same class");
      method07();
      method16();
      method10();
      method9701();
   }
}

Output

Various access modifiers being used in the same class
This method uses Public access modifier - method07
This method uses Private access modifier-method16
This method uses Protected access modifier-method10
This method uses Default access modifier-method10

Use two different classes in the same package to show the scope of access modifiers

In this particular Java code, we declared two different classes in the same package to demonstrate the scope of different access modifiers.

Example 2

import java.io.*;
class Helper {
   public static void method1(){
      System.out.println("I Want To Travel Varanasi");
   }
   public static void method2(){
      System.out.println("It Is In UP, India");
   }
   protected static void method3(){
      System.out.println("Doon Express Is The Best Option");
   }
   static void method4(){
      System.out.println("__________________");
   }
}
public class TP {
   public static void main(String[] args){
      System.out.println("Various access modifiers being used in the same class");
      Helper.method1();
      Helper.method2();
      Helper.method3();
      Helper.method4();
   }
}

Output

Various access modifiers being used in the same class
I Want To Travel Varanasi
It Is In UP, India
Doon Express Is The Best Option

Access private data members of a class

In this Java build code, we explain the getter and setter methods. Through this practice, we can get and set the values ​​​​of various parameters in the Java virtual machine.

Example 3

Example 3

import java.io.*;
class Helper {
   private int age;
   private String name;
   public void setAge(int age) { this.age = age; }
   public void setName(String name) { this.name = name; }
   public int getAge() { return this.age; }
   public String getName() { return this.name; }
}
public class Tutorialspoint {
   public static void main(String[] args){
      Helper ob = new Helper();
      ob.setAge(2001);
      ob.setName("We Are The Tutors Of Tutorialspoint");
      System.out.println("Age: " + ob.getAge());
      System.out.println("Name: " + ob.getName());
   }
}

Output

Age: 2001
Name: We Are The Tutors Of Tutorialspoint

in conclusion

In this article, we learned about different types of access modifiers and some possible Java codes by following the syntax and algorithm. Hopefully this article helped you understand how the Java access level functions mentioned here operate.

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