深拷貝和淺拷貝 完整例項

1、淺拷貝：對基本資料型別進行值傳遞，對引用資料型別進行引用傳遞般的拷貝，此為淺拷貝。

2、深拷貝：對基本資料型別進行值傳遞，對引用資料型別，建立乙個新的物件，並複製其內容，此為深拷貝。

3、淺拷貝(clone)示例**

public

class
student
implements
cloneable
public
void
setname
(string name)
@override
public string tostring()
@override
public object clone()
throws clonenotsupportedexception
}

public

class
teacher
implements
cloneable
public
void
setname
(string name)
public student getstudent()
public
void
setstudent
(student student)
@override
public string tostring()
@override
public object clone()
throws clonenotsupportedexception
}

public

class
test
catch
(clonenotsupportedexception e)
system.out.
println
(xlaoshi)
; system.out.
println
(wanglaoshi);/*
teacher [name=王, student=student [name=張三]]
teacher [name=王, student=student [name=張三]]
*/// 修改原老師的姓名和學生的姓名，複製的x老師的老師姓名沒有跟著變化，學生姓名跟著原老師的學生姓名變化，證明是淺拷貝。
wanglaoshi.
setname
("張");
wanglaoshi.
getstudent()
.setname
("李四");
system.out.
println
(xlaoshi)
; system.out.
println
(wanglaoshi);/*
teacher [name=王, student=student [name=李四]]
teacher [name=張, student=student [name=李四]]
*/}}

public

class
student
implements
cloneable
public
void
setname
(string name)
@override
public string tostring()
@override
public student clone()
throws clonenotsupportedexception
}

public

class
teacher
implements
cloneable
public
void
setname
(string name)
public student getstudent()
public
void
setstudent
(student student)
@override
public string tostring()
@override
public teacher clone()
throws clonenotsupportedexception
}

public

class
test
catch
(clonenotsupportedexception e)
system.out.
println
(xlaoshi)
; system.out.
println
(wanglaoshi);/*
teacher [name=王, student=student [name=張三]]
teacher [name=王, student=student [name=張三]]
*/// 修改原老師的姓名和學生的姓名，複製的x老師的老師姓名，學生姓名沒有跟著變化，證明是深拷貝。
wanglaoshi.
setname
("張");
wanglaoshi.
getstudent()
.setname
("李四");
system.out.
println
(xlaoshi)
; system.out.
println
(wanglaoshi);/*
teacher [name=王, student=student [name=張三]]
teacher [name=張, student=student [name=李四]]
*/}}

public

class
student
implements
serializable
public
void
setname
(string name)
@override
public string tostring()
}

public

class
teacher
implements
serializable
public
void
setname
(string name)
public student getstudent()
public
void
setstudent
(student student)
@override
public string tostring()
}

public

class
test
catch
(exception e)
}}

public

class
student
public
void
setname
(string name)
@override
public string tostring()
}

public

class
teacher
public
void
setname
(string name)
public student getstudent()
public
void
setstudent
(student student)
public teacher copy
(teacher teacher)
@override
public string tostring()
}

public

class
test
}

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