Java中trycatch处理异常示例

 public static void main(String[] args)
 {
  System.out.println(demo());
 }
 public static int demo(){
  GirlHome gh = new GirlHome("小陈陈",'男',28);
  try{
   gh.intoHome();
   System.out.println("进入了女生宿舍");
   return 0;
  }catch(SexOutException e){
   //System.out.println("出现了异常");
   //System.out.println(e);
   e.demo();
   e.printStackTrace();
  }catch (AgeOutException e) {
   // TODO: handle exception
  }finally{
   System.out.println("我必须被执行");
  }
  return 1;
  //System.out.println("愉快的一天结束啦");
 }

class GirlHome {
 public String name;
 public char sex;
 public int age;
 public GirlHome(String name,char sex,int age)
 {
  super();
  this.name = name;
  this.sex = sex;
  this.age = age;
 }
 //如果发现进入者是男的,那么抛出性别异常
 public void intoHome() throws SexOutException,AgeOutException{
  if(sex!='女'){
   SexOutException se = new SexOutException(name+"你不是女的,滚!!!");
   throw se;
  }
  if(age>25){
   throw new AgeOutException(name+"你的年龄太大了,滚!!!!");
  }
  System.out.println(name+"开心的进入了宿舍");
 }
 public void demo()throws Exception{}
}

class SmallGirlHome extends GirlHome{
 public SmallGirlHome(String name, char sex, int age)
 {
  super(name, sex, age);
  // TODO Auto-generated constructor stub
 }
 @Override
 public void intoHome() throws SexOutException,AgeOutException
 {
  
 }
 public void demo()
 {
  
 }

class AgeOutException extends Exception{
 public AgeOutException(String message){
  super(message);
 }
}
 class SexOutException extends Exception{
 public SexOutException(String message){
  super(message);
 }
 public void demo(){
  System.out.println("爱啦啦阿拉");
 }
}