example471super3.txt

几个简单的java学习代码

  
    public class Employee {
	 private static final double BASE_SALARY = 15000.00;
	 private String name;
	 private double salary;
	 private Date birthDate;

	 public Employee(String name, double salary, Date DoB) {
		 this.name = name;
		 this.salary = salary;
		 this.birthDate = DoB;
	 }

	 public Employee(String name, double salary) {
		 this(name, salary, null);
	 }

	 public Employee(String name, Date DoB) {
		 this(name, BASE_SALARY, DoB);
	 }

	 public Employee(String name) {
		 this(name, BASE_SALARY);
	 }
	 // more Employee code...

   }
  
   public class Manager extends Employee {
	 private String department;

	 public Manager(String name, double salary, String dept) {
		 super(name, salary);
		 department = dept;
	 }
	
	 public Manager(String n, String dept) {
		 super(name);
		 department = dept;
	 }
	
	 public Manager(String dept) { // This code fails: no super()
	 department = dept;
	 }
   }