> For the above program if i give input as: > stefen > > Then it is printing on 's' > > I tried to print variable 'j' after getchar() function in code. Then > for each character I enter 'j' value is incremented by two. The problem is due to the fact that the j variable is not incremented in the while loop. Adding j++; in the while loop after the buf assignment will solve your problem, ie: #include<stdio.h> int main() { int i,j=0; char buf[10]; xil_printf("main\n"); while(j<6) { i=getchar(); buf[j]=i; j++; } xil_printf("%s\n",buf); return 0; } Regards, Andrew