1.写了一段代码,但是为啥输不出内容呢?2.import java.util.HashMap;public class House {private String name;private HashMap<String,House> has=new HashMap<String,House>();public House(String name){this.name=name;}public void setExit(String dir,House house){has.put(dir,house);}public String getExitDes(){ StringBuffer buffer=new StringBuffer(); for(String s:has.keySet()){
buffer.append(s);
buffer.append(has.get(s));
} return buffer.toString();}public static void main(String[] args){ House house=new House("卧室");
House house1=new House("厨房");
House house2=new House("客厅");
house.setExit("left", house1);
house.setExit("right", house2);
System.out.print(house.getExitDes());}}3.运行后,输出:leftTest.House@2a139a55rightTest.House@15db9742没有输出房间的信息??
1 回答

富国沪深
TA贡献1790条经验 获得超9个赞
重写toString方法
@Overridepublic String toString() { return "House [name=" + name + "]"; }
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