I implemented it myself:
Copy the code code as follows:
public class A implements Cloneable {
public String str[];
A() {
str = new String[2];
}
public Object clone() {
A o = null;
try {
o = (A) super.clone();
} catch (CloneNotSupportedException e) {
e.printStackTrace();
}
o.str = new String[2];
return o;
}
}
void run() throws Exception {
A a1 = new A(), a2 = new A();
a1.str[0] = "a"; a1.str[1] = "b";
a2 = (A) a1.clone();
a2.str[0] = "c"; a2.str[1] = "d";
System.out.println(a1.str[0] + " " + a2.str[0]);
}
result:
ac
1.
Copy the code code as follows:
public class A implements Cloneable {
public String name;
public Object clone() {
A o = null;
try {
o = (A) super.clone();
} catch (CloneNotSupportedException e) {
e.printStackTrace();
}
return o;
}
}
2.
Copy the code code as follows:
public class A implements Cloneable {
public String name[];
public A(){
name=new String[2];
}
public Object clone() {
A o = null;
try {
o = (A) super.clone();
} catch (CloneNotSupportedException e) {
e.printStackTrace();
}
return o;
}
}
3.
Copy the code code as follows:
public class A implements Cloneable {
public String name[];
public Vector<B>claB;
public A(){
name=new String[2];
claB=new Vector<B>();
}
public Object clone() {
A o = null;
try {
o = (A) super.clone();
} catch (CloneNotSupportedException e) {
e.printStackTrace();
}
o.name=new String[2];//depth clone
o.claB=new Vector<B>();//Process clone to the end
for(int i=0;i<claB.size();i++){
B temp=(B)claB.get(i).clone();//Of course Class B must also implement the corresponding clone method
o.claB.add(temp);
}
return o;
}
}