Help me to troubleshoot the errors

Question

import java.io.DataInputStream;
class Items
     int itemcode[]=new int[10];
     int itemcoast[]=new int[10];
     int rem;
     int i,coast,counter;
     try
          //Input Items
          void getitem()
               System.out.println("Enter the item code");
               itemcode[counter]=Integer.parseInt(d.readLine());
               System.out.println("Enter the item cost");
               itemcost[counter]=Integer.parseInt(d.readLine());
               counter++;
          //Total price
          void sumitemcoast()
               for(i=0;i<counter;i++)
                    coast=coast+itemcoast;
          //to display current items and its coast
          void display()
               System.out.println("Item code And Item Coast");
               for(i=0;i<counter;i++)
                    System.out.println(itemcode[i]+" "+itemcoast[i]);
          //remove item
          void remove()
               System.out.println("Enter the item code you want to remove");
               rem=Integer.parseInt(d.readLine());
               for(i=0;i<counter;i++)
                    if(itemcode[i]==rem)
                         itemcoast[i]=0;
                         break;
     catch (Exception e)     {     }
//main
class Allitem
     public static void main(String args[])
          DataInputStream d=new DataInputStream(System.in);
          Items I=new Items();
          try
               System.out.println("Press 1 to Enter Data \n Press 2 to display Item and Coast \n Press 3 to get total item coast \n Press 4 to remove item");
               x=Integer.parseInt(d.readLine());
               do
                    switch(x)
                         case 1:I.getitem();
                                   break;
                         case 2:I.display();
                                   break;
                         case 3:I.sumitemcoast();
                                   break;
                         case 4:I.remove();
                                   break;
                    System.out.println("Enter 1 to stop or 0 to continue");
                    int w=Integer.parseInt(d.readLine());
               while(w!=0);
          catch (Exception e){}

Answer 1

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