Java羊类与数组实现-优快云博客

新建一个羊类，然后在建一个羊类数组，然后对每个羊进行赋值，分类。最后显示输出。

import java.util.Scanner;
class Sheep{
 private String type;
 private int id;
 private double wight;
 private String color;
 public Sheep(){}
 public Sheep(String type,int id,double wight,String color){
  this.type=type;
  this.id=id;
  this.wight=wight;
  this.color=color;
 }
 public void setType(String type) {
  this.type = type;
 }
 public String getType() {
  return type;
 }
 public void setId(int id) {
  this.id = id;
 }
 public int getId() {
  return id;
 }
 public void setWight(double wight) {
  this.wight = wight;
 }
 public double getWight() {
  return wight;
 }
 public void setColor(String color) {
  this.color = color;
 }
 public String getColor() {
  return color;
 }
 public void show(){
  System.out.println("羊的属性：类型-"+this.type+"编号-"+this.id+"颜色-"+this.color+"重量-"+this.wight);
 }
}
class SheepArray{
 private Sheep []a=new Sheep[10];
 private int maxsheep;
 private String name;
 public SheepArray(){
	  for(int i=0;i<10;i++)
		  a[i]=new Sheep();

;不初始化会产生空指针数组。。。。。


}
 public SheepArray(int maxsheep,String name){
  this.maxsheep=maxsheep;
  this.name=name;
  for(int i=0;i<10;i++)
	  a[i]=new Sheep();;不初始化会产生空指针数组。。。。。
 }
 public void setMaxsheep(int maxsheep) {
  this.maxsheep = maxsheep;
 }
 public int getMaxsheep() {
  return maxsheep;
 }
 public void setName(String name) {
  this.name = name;
 }
 public String getName() {
  return name;
 }
 public void setA(int i) { 
   String type;int id;double wight;String color;
   Scanner scan=new Scanner(System.in);
   System.out.println("请输入羊的编号：");
   id=scan.nextInt();
   a[i].setId(id);
   System.out.println("请输入羊的类型：");
   type=scan.next();
   a[i].setType(type);
   System.out.println("请输入羊的重量：");
   wight=scan.nextInt();
   a[i].setWight(wight);
   System.out.println("请输入羊的颜色：");
   color=scan.next();
   a[i].setColor(color);
 }
 public int maxwight(int n){
  int z=0;
  for(int i=0;i<n;i++){
   if(a[i].getWight()>a[i+1].getWight())
    z=i;
  }
  return z;
 }
 public void show(int n){
for(int i=0;i<n;i++)
   System.out.println(a[i].getId()+"号羊的颜色："+a[i].getColor()+";"+"羊的类型："+a[i].getType()+";"+"羊的重量："+a[i].getWight());
 } 
}
public class TestSheep {
public static void main(String []args){
  int n;
  SheepArray aa=new SheepArray(10,"bitte");
  Scanner scan=new Scanner(System.in);
  System.out.println("请输入要养多少只羊：");
  n=scan.nextInt();
  System.out.println("请输入每只羊的信息：");
  for(int j=0;j<n;j++)
  aa.setA(j);
  aa.show(n);  
 }
}

转载于:https://my.oschina.net/u/1274133/blog/169094