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CloneTest2.java

/*

*測試包含對象的克隆及clone方法的重寫

*/

import java.util.GregorianCalendar;

import java.util.Date;

public class CloneTest{

public static void main(String[] args){

Student tom=new Student("tom","20020410");

tom.setEntryDate(2002,01,02);

Student tomcopy=(Student)tom.clone();

tomcopy.setStudentSex("man");

tomcopy.setEntryDate(2003,10,23);

System.out.println(tom.toString());

System.out.println(tomcopy.toString());

}

/*

* 學生類，包括學生的基本信息，實現了Cloneable接口

*/

class Student implements Cloneable

{

private String strName = "";//學生姓名

private String strNumber = "";//學號

private String strSex = "";//性別

private String strBirthday = "";//出生年月

private String strSpeciality = "";//專業

private String strAddress = "";//地址

private GregorianCalendar entryDate = new GregorianCalendar();//入學日期

public Student(String name, String number)

{

strName = name;

strNumber = number;

}

public Object clone(){

try{

Student cloned=(Student)super.clone();

cloned.entryDate=(GregorianCalendar)entryDate.clone();

return cloned;

}

catch(CloneNotSupportedException e){

return null;

}

public String getStudentName()

{

return strName;

}

public String getStudentNumber()

{

return strNumber;

}

public void setStudentSex(String sex)

{

strSex = sex;

}

public String getStudentSex()

{

return strSex;

}

public String getStudentBirthday()

{

return strBirthday;

}

public void setStudentBirthday(String birthday)

{

strBirthday = birthday;

}

public String getStudentSpeciality()

{

return strSpeciality;

}

public void setStudentSpeciality(String speciality)

{

strSpeciality = speciality;

}

public String getStudentAddress()

{

return strAddress;

}

public void setStudentAddress(String address)

{

strAddress = address;

}

public void setEntryDate(int year, int month, int day)

{

entryDate.set(year, month-1, day);

}

public Date getEntryDate()

{

return entryDate.getTime();

}

public String getStudentName()

{

return strName;

}

public String getStudentNumber()

{

return strNumber;

}

public void setStudentSex(String sex)

{

strSex = sex;

}

public String getStudentSex()

{

return strSex;

}

public String getStudentBirthday()

{

return strBirthday;

}

public void setStudentBirthday(String birthday)

{

strBirthday = birthday;

}

public String getStudentSpeciality()

{

return strSpeciality;

}

public void setStudentSpeciality(String speciality)

{

strSpeciality = speciality;

}

public String getStudentAddress()

{

return strAddress;

}

public void setStudentAddress(String address)

{

strAddress = address;

}

public void setEntryDate(int year, int month, int day)

{

entryDate.set(year, month-1, day);

}

public Date getEntryDate()

{

return entryDate.getTime();

}

public String toString(){

String information="student name="+strName+",student number="+strNumber;

if(!strSex.euquals(""))

information+=",birthday="+strBirthday;

if(!strSpeciality.equals(""))

information+=",專業＝"+strSpeciality;

if(!strAddress.equals(""))

information+=",address="+strAddress;

if(entryDate!=null)

information+=",entrydate="+getEntryDate();

return information;

}}

posted on 2008-10-23 14:40 郭興華閱讀(146) 評論(0) 編輯收藏

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