问C编程初学者-请解释此错误

EN

#include <stdio.h>
#define ARRAYSIZE 50
#include <string.h>

main () {
  int c,i;
  char letter[ARRAYSIZE];
  i=0;
  while ((c=getchar()) != EOF )
  {    
    letter[i]=c;
    i++;
  }
  letter[i]='\0';
  printf("You entered %d characters\n",i);
  printf("The word is ");

  printf("%s\n",letter);
  printf("The length of string is %d",strlen(letter));
  printf("Splitting the string into chars..\n");
  int j=0;
  for (j=0;j++;(j<=strlen(letter)))
    printf("The letter is %d\n",letter[j]);
}

$ ./a.out 
hello how are youYou entered 17 characters
The word is hello how are you
The length of string is 17Splitting the string into chars..