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sorry for this.here's the code:

import java.util.*;
class calculator
{
int x,y,result;
{
x=0;
y=0;
result=0;

umm...oh yes.it just slipped off from my mind...thanks

--- Update ---

but now again it says can't find symbol.."ch=ob.nextInt();"


int ch;
do
{

i have programmed two programs and both of them when compiled highlighted the same error:Scanner ob=new Scanner(System.in);.saying cannot find symbol

void input()
{
Scanner ob=new...