20161017問(wèn)題解析請(qǐng)點(diǎn)擊今日問(wèn)題下方的“【Java每日一題】20161018”查看（問(wèn)題解析今后在公眾號(hào)首發(fā)煮仇，公眾號(hào)ID：weknow619嘿辟，歡迎訂閱）
package Oct2016;
public class Ques1018 {
public static void main(String[] args){
Obj obj01 = new Obj("18");
Obj obj02 = new Obj("19");
obj01.printAge(obj02);
}
}
class Obj{
private String age;
public Obj(String age){
this.age = age;
}
public void printAge(Obj obj){
String age = obj.age;
System.out.println("年齡是：" + age);
}
}
今日問(wèn)題：
請(qǐng)問(wèn)主程序輸出結(jié)果是什么？（點(diǎn)擊以下“【Java每日一題】20161018”查看20161017問(wèn)題解析）
