Question

java面向对象编程习题，急求答案，用MyEclipse编写 为“无名的粉”写一个类：class

java面向对象编程习题，急求答案，用MyEclipse编写

为“无名的粉”写一个类：class WuMingFen 要求：

1.有三个属性：面码:String theMa 粉的分量(两)：int
quantity

是否带汤：boolean likeSoup

2.写一个构造方法，以便于简化初始化过程，如：

WuMingFen f1 = new WuMingFen("牛肉",3,true);

3.重载构造方法，使得初始化过程可以多样化：

WuMingFen f2 = new WuMingFen("牛肉",2);

4.如何使得下列语句构造出来的粉对象是酸辣面码、2两、带汤的？

WuMingFen f3 = new WuMingFen();

5.写一个普通方法：check()，用于查看粉是否符合要求。即：将对象的三个属性打印在控制台上。

Answer 1

public class WuMingFen {

private String theMa; //面码

private int quantity;//粉的分量(两)

private boolean likeSoup;//是否带汤

public WuMingFen(){
this.theMa = "酸辣";
this.quantity = 2;
this.likeSoup = true;
}

public WuMingFen(String theMa,int quantity){
this.theMa = theMa;
this.quantity = quantity;
}

public WuMingFen(String theMa,int quantity,boolean likeSoup){
this.theMa = theMa;
this.quantity = quantity;
this.likeSoup = likeSoup;
}

public void check(){
System.out.println("面码:"+this.theMa);
System.out.println("粉的分量(两):"+this.quantity);
System.out.println("是否带汤:"+this.likeSoup);
}

//验证
public static void main(String[] args){
WuMingFen f1 = new WuMingFen("牛肉",3,true);
WuMingFen f2 = new WuMingFen("牛肉",2);
WuMingFen f3 = new WuMingFen();
f1.check();
f2.check();
f3.check();
}

}

Answer 2

public class WuMingFen {

private String theMa ;
private int quantity ;
private boolean likeSoup ;

public static void main(String[] args) {
WuMingFen f3 = new WuMingFen();
f3.setLikeSoup(true);
f3.setTheMa("酸辣面");
f3.setQuantity(2);
check(f3);

}

private static void check(WuMingFen fen){

System.out.println("这是："+fen.getTheMa());
System.out.println("重量："+fen.getQuantity());
if(fen.isLikeSoup()){
System.out.println("带汤");
}else{
System.out.println("不带");
}

}
public WuMingFen(String theMa, int quantity) {
this.theMa = theMa;
this.quantity = quantity;
}
public WuMingFen() {

}
public WuMingFen(String theMa, int quantity, boolean likeSoup) {
super();
this.theMa = theMa;
this.quantity = quantity;
this.likeSoup = likeSoup;
}
public String getTheMa() {
return theMa;
}

public void setTheMa(String theMa) {
this.theMa = theMa;
}

public int getQuantity() {
return quantity;
}

public void setQuantity(int quantity) {
this.quantity = quantity;
}

public boolean isLikeSoup() {
return likeSoup;
}

public void setLikeSoup(boolean likeSoup) {
this.likeSoup = likeSoup;
}
@Override
public String toString() {
return "WuMingFen [theMa=" + theMa + ", quantity=" + quantity
+ ", likeSoup=" + likeSoup + "]";
}
}