import java.util.Scanner;

class MyException extends Exception{
    MyException(){
        super("面试年龄不符合！");
    }
}
class LaborialStaff{
    void get(int age){
        if(age<18||age>40){
            throw new MyException();
        }else{
            System.out.println("符合面试要求！");
        }
    }
}
class MiddleManagement{
    void get(int age){
        if(age>28&&age<50){
            System.out.println("符合面试要求！");
        }else{
            throw new MyException();
        }
    }
}
class SeniorManagement{
    void get(int age){
        if(age>35&&age<65){
            System.out.println("符合面试要求！");
        }else{
            throw new MyException();
        }
    }
}
public class Recruitment_3 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int age1,age2,age3;
        int i;
        try{
            System.out.println("请输入你要应聘的职位,1为普工,2为中层管理员,3为高级管理员.谢谢!");
            Scanner sc=new Scanner(System.in);
            i=sc.nextInt();
            switch(i){
            case 1:
                System.out.println("你要应聘的是普通员工,请输入你的年龄:");
                Scanner ss=new Scanner(System.in);
                age1=ss.nextInt();
                LaborialStaff a=new LaborialStaff();
                a.get(age1);
                break;
            case 2:
                System.out.println("你要应聘的是中层管理人员,请输入你的年龄:");
                Scanner mm=new Scanner(System.in);
                age2=mm.nextInt();
                MiddleManagement b=new MiddleManagement();
                b.get(age2);
                break;
            case 3:
                System.out.println("你要应聘的是高级管理人员,请输入你的年龄:");
                Scanner xx=new Scanner(System.in);
                age3=xx.nextInt();
                SeniorManagement c=new SeniorManagement();
                c.get(age3);
                break;
            default:
                System.out.println("Input Error!");
                break;
                }
            }catch(MyException ex){
            System.out.println(ex.getMessage());
        }

    }

}
//错误就在标记的地方了，为啥这样抛出的自定义异常不能捕捉，请个位帮帮忙看看，谢谢！

自己找出错误来了，哈哈！答案如下：
import java.util.Scanner;

class MyException extends Exception{
    MyException(){
        super("年龄不符合面试相应的职位！");
    }
}
public class Recruitment_3 {
    public static void get1(int age1)throws MyException{
        if(age1<18||age1>40){
            throw new MyException();
        }else{
            System.out.println("年龄符合面试普工要求,谢谢合作！");
        }
    }
    public static void get2(int age2)throws MyException{
        if(age2>28&&age2<50){
            System.out.println("年龄符合面试中层管理人员要求,谢谢合作！");
        }else{
            throw new MyException();
        }
    }
    public static void get3(int age3)throws MyException{
        if(age3>35&&age3<65){
            System.out.println("年龄符合面试高层管理人员要求,谢谢合作！");
        }else{
            throw new MyException();   
        }
    }   
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        int age1,age2,age3;
        int i;
        try{
            System.out.println("请输入你要应聘的职位,1为普工,2为中层管理员,3为高级管理员,谢谢!");
            Scanner sc=new Scanner(System.in);
            i=sc.nextInt();
            switch(i){
            case 1:
                System.out.println("你要应聘的是普通员工,请输入你的年龄:");
                Scanner ss=new Scanner(System.in);
                age1=ss.nextInt();
                get1(age1);
                break;
            case 2:
                System.out.println("你要应聘的是中层管理人员,请输入你的年龄:");
                Scanner mm=new Scanner(System.in);
                age2=mm.nextInt();
                get2(age2);
                break;
            case 3:
                System.out.println("你要应聘的是高级管理人员,请输入你的年龄:");
                Scanner xx=new Scanner(System.in);
                age3=xx.nextInt();
                get3(age3);
                break;
            default:
                System.out.println("你输入的应聘职位序号不正确!");
                break;
                }
            }catch(MyException ex){
            System.out.println(ex.getMessage());
        }
    }
}
//原来开始是自己不会声明抛出的throw。。。

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