Java 实例变量示例

import java.io.*;

public class Employee {



   // this instance variable is visible for any child class.

   public String name;



   // salary  variable is visible in Employee class only.

   private double salary;



   // The name variable is assigned in the constructor.

   public Employee (String empName) {

      name = empName;

   }



   // The salary variable is assigned a value.

   public void setSalary(double empSal) {

      salary = empSal;

   }



   // This method prints the employee details.

   public void printEmp() {

      System.out.println("name  : " + name );

      System.out.println("salary :" + salary);

   }



   public static void main(String args[]) {

      Employee empOne = new Employee("Ransika");

      empOne.setSalary(1000);

      empOne.printEmp();

   }

}