public class EmployeeClass{
 private String name; // 名字
 private int id; //公司编号
 private double salary; //薪水
 private String department;// 部门
 
 public EmployeeClass(){}
 
 public EmployeeClass(String name,int id,double salary,String department){
   this.name = name;
   this.id = id;
   this.salary = salary;
   this.department = department;
  }

 public String getName() {
  return name;
 }

 public void setName(String name) {
  this.name = name;
 }

 public int getId() {
  return id;
 }

 public void setId(int id) {
  this.id = id;
 }

 public double getSalary() {
  return salary;
 }

 public void setSalary(double salary) {
  this.salary = salary;
 }

 public String getDepartment() {
  return department;
 }

 public void setDepartment(String department) {
  this.department = department;
 }

 @Override
 public String toString() {
  return "EmployeeClass [name=" + name + ", id=" + id + ", salary="
    + salary + ", department=" + department + "]";
 }

}

public class ManagerClass extends EmployeeClass{
 private double specialsalary;
 
 public ManagerClass(){super();}
 
 public ManagerClass(String name,int id,double salary,String department,double specialsalary){
  super(name,id,salary,department);
  this.specialsalary = specialsalary;
 }

 public double getSpecialsalary() {
  return specialsalary;
 }

 public void setSpecialsalary(double specialsalary) {
  this.specialsalary = specialsalary;
 }

 @Override
 public String toString() {
  return super.toString() + "\nspecialsal:" +specialsalary;
 }
 

}

public void setInfo(String name,int id,double salary,String department){
  this.name = new String(name);
  this.id = id;
  this.salary = salary;
  this.department = new String(department);
  
 }

public void setInfo(String name,int id,double salary,String department,double specialsalary){
   super(name,id,salary,department);
    this.specialsalary = specialsalary;
    
  }

public boolean euqals(Object obj){
  return (this == obj);
 }

public class ComplexNumber {
 private double re;
 private double im;
 
 public ComplexNumber(){re = 0.0;im = 0.0;}
 public ComplexNumber(double re,double im){
  this.re = re;
  this.im = im;
 }
 public double getRe() {
  return re;
 }
 public void setRe(double re) {
  this.re = re;
 }
 public double getIm() {
  return im;
 }
 public void setIm(double im) {
  this.im = im;
 }
 
 public boolean equals(Object otherObject){
  if(this == otherObject) return true;
  if(otherObject == null) return false;
  if(getClass() != otherObject.getClass()) return false;
  
  ComplexNumber other = (ComplexNumber)otherObject;
  if((re == other.re) && (im == other.im)) return true;
  else return false;
 }
 public String toString(){
  String str = "";
  if(re != 0) str += re;
  if(im == 0) return str;
  if( im < 0 ) str += im +"i";
  else str += " + " + im +"i";
  return str;
 }
 
 public static void main(String[] args) {
  ComplexNumber c1,c2;
  c1 = new ComplexNumber(2,3);
  c2 = new ComplexNumber(2,-3.4);
  if(c1.equals(c2)){
   System.out.println("("+c1+") == ( " + c2 +")" );
  }
  else{
   System.out.println("("+c1+") <> ( " + c2 +")" );
  }
 }
}