Default Access Specifier Example in Java

Introduction

Default Access Specifier is a classic Java console program that demonstrates the concept with complete source code and sample output. Access specifiers control visibility between classes, packages and subclasses.

This tutorial walks through the program line by line, explains how the logic works, and highlights best practices you can apply in your own code.

Definition

Java Access Specifiers regulate access to classes, fields and methods in Java.These Specifiers determine the scope of a method or variable or loop.

Default Access Specifier Example Program

class Main {   
   int num=100000;
}
class DefaultAccessSpecifier {
	public static void main(String[] args) {      
		Main obj = new Main();
		int number = obj.num;  // works
		System.out.println("The value of the variable with default access specifier in this program is: "+number);
	}
}

Sample Output

The value of the variable with default access specifier in this program is: 100000

When to use

Use this default access specifier example when learning or revising core Java syntax.

How it works

1. Execution begins in the main method — the JVM calls this method when you run the class.

2. int num=100000; updates a variable used in the calculation or output.

3. Main obj = new Main(); updates a variable used in the calculation or output.

4. int number = obj.num; // works updates a variable used in the calculation or output.

5. A println / print call writes text to the console — part of the sample output below.

6. Compare your console output with the sample output for Default Access Specifier to confirm the program behaves correctly.

Best Practices

• Use meaningful variable and class names that describe their purpose.
• Compile and run the program locally — modify values to see how output changes.
• Read compiler errors carefully; they usually point to the exact line to fix.

Common Mistakes

• Copying code without understanding each line — practice by changing one statement at a time.
• Mismatching the public class name and the .java filename.
• Forgetting semicolons at the end of statements.