liyongziyuan.txt

可以建立一个数据库一般的资料放置以及查询

public class Doctor { 
private String name; 
private int idNumber; 
private String address; 

public Doctor(String name, int idNumber, String address) { 
super(); 
this.name = name; 
this.idNumber = idNumber; 
this.address = address; 
} 

public String getAddress() { 
return address; 
} 

public void setAddress(String address) { 
this.address = address; 
} 

public int getIdNumber() { 
return idNumber; 
} 

public void setIdNumber(int idNumber) { 
this.idNumber = idNumber; 
} 

public String getName() { 
return name; 
} 

public void setName(String name) { 
this.name = name; 
} 
public String toString(){ 
return this.name+":"+this.idNumber+":"+this.address; 
} 
public static void main(String[] args) { 

Doctor d1=new Doctor("cyq",10,"nanjin road shanghai"); 
NonSpecialist d2=new NonSpecialist("jr",11,"sichuan road shanghai"); 
Specialist d3=new Specialist("xyz",12,"beijin road shanghai"); 
d3.setSpecialty("medical "); 
System.out.println(d1); 
System.out.println(d2); 
System.out.println(d3); 
} 

} 
class NonSpecialist extends Doctor{ 

public NonSpecialist(String name, int idNumber, String address) { 
super(name, idNumber, address); 

} 

} 
class Specialist extends Doctor{ 
private String specialty; 
public Specialist(String name, int idNumber, String address) { 
super(name, idNumber, address); 
} 
public String getSpecialty() { 
return specialty; 
} 
public void setSpecialty(String specialty) { 
this.specialty = specialty; 
} 
@Override 
public String toString() { 

return super.toString()+":"+this.specialty; 
} 


}