- 科技
- 同一类中构造函数互调
同一类中构造函数互调
public class Demo01 {
private String name
;
private int num
;
Demo01(String a
,int b
){
name
=a
;
num
=b
;
}
Demo01(String a
){
this(a
,0);
}
Demo01(int b
){
num
=b
;
}
Demo01(){
this("Unknown");
}
public String
getName() {
return name
;
}
public void setName(String name
) {
this.name
= name
;
}
public int getNum() {
return num
;
}
public void setNum(int num
) {
this.num
= num
;
}
}
public class Test {
public static void main(String
[] args
) {
Demo01 obj
= new Demo01();
Demo01 obj1
= new Demo01("hehao",123);
Demo01 obj2
= new Demo01("xxxx");
Demo01 obj3
= new Demo01(666);
System
.out
.println(obj
.getName());
System
.out
.println(obj1
.getName());
System
.out
.println(obj2
.getName());
System
.out
.println(obj3
.getName());
System
.out
.println(obj
.getNum());
System
.out
.println(obj1
.getNum());
System
.out
.println(obj2
.getNum());
System
.out
.println(obj3
.getNum());
}
}
Unknown
hehao
xxxx
null
0
123
0
666
Processed:
0.060, SQL:
8
