java问题:构造函数
来源:百度知道 编辑:UC知道 时间:2024/04/28 17:25:43
Alone5_6类拥有下列成员变量,请编写构造函数,使用它初始化成员变量,并编写三个方法来获取变量的值.用this(....)
public class Alone5_6{
int a;
double b;
String c;
public Alone5_6(){ //调用x1行的构造函数
}
public Alone5_6(int a){ //调用x1行的构造函数
}
public Alone5_6(int a,double b){ //调用x1行的构造函数
}
public Alone5_6(int a,double b,String c){ //x1
}
int getA(){
}
double getB(){
}
String getC(){
}
}
public class Alone5_6{
int a;
double b;
String c;
public Alone5_6(){ //调用x1行的构造函数
}
public Alone5_6(int a){ //调用x1行的构造函数
}
public Alone5_6(int a,double b){ //调用x1行的构造函数
}
public Alone5_6(int a,double b,String c){ //x1
}
int getA(){
}
double getB(){
}
String getC(){
}
}
随便谢谢,LZ看着办。
public class Alone5_6{
int a;
double b;
String c;
public Alone5_6(){ //调用x1行的构造函数
a = 0;
b = 0.0;
c = "";
}
public Alone5_6(int a){ //调用x1行的构造函数
this.a = a;
b = 0.0;
c = "";
}
public Alone5_6(int a,double b){ //调用x1行的构造函数
this.a = a;
this.b = b;
c = "";
}
public Alone5_6(int a,double b,String c){ //x1
this.a = a;
this.b = b;
this.c = new String(c);//此处视情况,如果需要使成员变量与参数指向同一内存地址,那么改为 this.c = c;
}
int getA(){
return a;
}
double getB(){
return b;
}
String getC(){
return c;
}
}
这不就是个javabean吗?
public class Alone5_6{
int a;
double b;
String c;
public int getA(){
return a;
}
public void setA(int a){
this.a = a;