System.out.print( "------请选择相应的选项:" );
int choose = -1;
try
{
String sc = s.nextLine();
choose = Integer.parseInt(sc);
System.out.println();
}
catch(Exception e)
{
System.out.println("Enter error!");
mainMenu();
}
switch(choose)
{
case 1:
addMenu();
break;
case 2:
searchMenu();
break;
case 3:
dispMenu();
break;
case 4:
deleteMenu();
break;
case 5:
borrowedMenu();
break;
case 6:
restoreMenu();
break;
case 0:
System.exit(0);
break;
default:
System.out.println("Enter error! Please enter a integer between 0 and 6!");
mainMenu();
}
}