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Private Variable

Posted By: Rashad Hashmi     Category: Java     Views: 5211

This article explains about private variable in java with example.

Private variables can be accessed only by code in the same class. If you want to set/get value of that variable than you need to call privileged methods.    

Syntax of Private Variable

private type varName = value; 

type is any data type in java.
varName is any valid identifier in java. It is a variable name.
value is an optional. You can initialize variable by assigning its value. 

Example of Private Variable

Example 1 : Program that illustrates private variable use in java using employee class salary variable

class Employee
{
   String empName; 
   private int salary; // It is visible in Employee class only
   
   public Employee(String strEmp)
   {
      empName = strEmp;
   }

   public void setSalary(int empSlr)
   {
      salary = empSlr;
   }
   
   
   public void displayDetail()
   {
      System.out.println("Employee Name  : " + empName);
      System.out.println("Employee salary :" + salary);
   }
}

class PrivateVariableDemo
{
   public static void main(String args[])
   {
      Employee empObj = new Employee("Rayan");

      empObj.setSalary(5000);
      empObj.displayDetail();
   }
}


Output

Employee Name  : Rayan
Employee salary :5000

  
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Rashad Hashmi
Rashad Hashmi author of Private Variable is from Lahore, Pakistan.
 
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