jxl - Try catch in java doesn't work -

try {     for(int j = 0; j<cellcountforcustomers-1; j++, customerrow++) {          cell c2 = sheetforgroups.getcell(customercolumn, customerrow);             string clientuserid = c2.getcontents();                 if(c2.gettype() == celltype.empty){             customercolumn = 0;             break;         }              driver.findelement(by.id("clientuserid1")).clear();         driver.findelement(by.id("clientuserid1")).sendkeys(clientuserid);         driver.findelement(by.id("add")).click();         } } catch (arrayindexoutofboundsexception e) {         e.printstacktrace();     } 

i'm trying read excel file using jxl extension. somehow, when excel file ends , there no more cells further, not catch index out of bounds. doing wrong?

          try          {             toast.maketext(context, "cood in try", 1).show();          }          catch(exception e)          {               toast.maketext(context, "cood in catch", 1).show();          }