[ask] about exception handling java

Servermaster

Tanya gan, berkaitan dengan exception handling...

Jadi codenya begini di kelas main :

Code:

public class Main {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
Mobil mob = new Mobil();
BufferedReader b = new BufferedReader(new InputStreamReader(System.in));
int x=0,panjang = 0,lebar = 0;
String merek = "", platNo = "", bahanBakar = "", warna = "";
LinkedList listKomponen = new LinkedList();
do{
try{
System.out.println("=====MENU=====\n"+
"1. Masukkan Mobil Baru\n"+
"2. Tampil Semua Data Mobil\n"+
"3. Keluar \n Pilihan anda : ");
x = input.nextInt();

switch(x){
case 1 :
try{
System.out.println("merk : ");
merek = b.readLine();
System.out.println("Plat No ; ");
platNo = b.readLine();
System.out.println("Warna : ");
warna = b.readLine();
System.out.println("Bahan bakar : ");
bahanBakar = b.readLine();
System.out.println("Panjang : ");
panjang = input.nextInt();
System.out.println("Lebar : ");
lebar = input.nextInt();
checkMerk(merek, listKomponen);
checkBB(bahanBakar, listKomponen);
checkLebar(lebar);
checkPanjang(panjang);
checkPlat(platNo, listKomponen);

}
catch(merkException me){
System.out.println(me.getMessage());
}
catch(bbException bbe){
System.out.println(bbe.getMessage());
}
catch(rangeException re){
System.out.println(re.getMessage());
}
catch(platNoException pne){
System.out.println(pne.getMessage());
}
catch(Exception E){}
mob = new Mobil(merek, warna, platNo, bahanBakar, panjang, lebar);
listKomponen.add(mob);
break;
case 2 :
printListKomponen(listKomponen);

break;

}
}
catch(Exception E){}

}
while(x!=3);

}

public static void printListKomponen(LinkedList

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