Cannot Get This Program To Compile

Question

Can someone please review this question and help me to fix the syntax. I will also post the question so that you have an idea of what is going on. I am very frustrated about this problem. I just can't get it to work and I really don't know all of the commands. I am a novice to Java.
The letters of a word are stored in an array str with the first letter in str(1), the second in str(2), and so on. The character ?$? is placed in the array after the last letter of the word to indicate the end of the word.
Suppose that str contains m letters (excluding ?$?).
Write a program to:
1. Allow the user to read a word into the array str. Assume that there is no word longer than 100 characters.
2. Read an integer value (n > 0) and a letter, ?letter?. Your program must insert letter after the nth letter in str. The letters to the right of the nth letter (including ?$?) must be shifted right by one position to make room for letter. Validate the value of n.
3. To delete a letter, 'error', from the word all the letters following 'error' must be shifted left by one position to overwrite 'error'. Your program must prompt the user for the letter 'error' and delete the letter from the word.
import java.io.*;
public class Assign5
public static void main(String[]args) throws IOException
char str[] = new char[100];
int count =0;
BufferedReader read = new BufferedReader (new InputStreamReader (System.in));
String word;
String letter;
String input;
System.out.println("******Word Count, Formation & Reformation Function******");
System.out.println("\nEnter your word of choice ending with $ e.g. Scavenger$ ");
word = read.readLine();
do
if (Character.isSpaceChar(word.charAt(count)) == true)
System.out.println("You forgot the $ to indicate the end of the word");
System.out.println( "Enter word to which manipulation must be done, ending with $ e.g. Scavenger$");
word = read.readLine();
str[count]= word.charAt(count);
count ++;
}while (str[count -1] != '$');
int m = count -1;
System.out.println("\nThe number of letters in the word is " +m);
//Word Re-Formation Function
System.out.println("\nEnter a letter that you wish to stuff into your word");
letter = read.readLine();
System.out.println( "\nEnter the letter position (an integer) after which to stuff your letter");
input = read.readLine();
int n = Integer.parseInt(input);
n = n - 1 ;
while(n <= 0)
System.out.println("\nI am sorry...that position is invalid");
System.out.println("\nEnter the letter position (an integer) after which to stuff your letter");
input = read.readLine();
n = Integer.parseInt(input);
n = n-1;
char temp[] = new char[100];
int index = 0;
for(int i = (n+1);i <= m; i++)
index = index +1;
temp[index] = str;
str[n +1] = letter.charAt(0);
index = 1;
for(int i = (n+2); i <= (m+1) ; i++)
str = temp[index];
index = index + 1;
//Printing the new word
System.out.print("\nThe new reconstructed word is: ");
for(int i = 0; i <= m ; i++)
System.out.print(str);
System.out.println();
int newM = m + 1;
//Error Correction Module
System.out.print("\nThe new reconstructed word is: ");
for(int i = 0; i <= m ; i++)
System.out.print(str);
char errorLetter[] = new char[1];
do
System.out.println("Enter a letter that you wish to remove from your word");
input = read.readLine();
errorLetter[1] = input.charAt(1);
int position = 0;
for(int findLetter = 1; findLetter <= newM; findLetter++)
if(errorLetter[1] == str[findLetter])
position = findLetter;
if(position == 0)
System.out.println("I am sorry?that letter is NOT contained in the word.");
errorLetter[1] = ' ';
position = 0;
}while (errorLetter[1] == ' ');
System.out.println("The new word formed after removing your letter is: ");
for(i = 1; i = 100; i++)
if(i = position)
str = temp[i + 1];
for(fillLoop = i + 1; fillLoop = 99; fillLoop++)
str[fillLoop] = temp[fillLoop + 1];
for(i = 0; i = 100; i++)
System.out.print(str[fillLoop]);
}

Answer 1

As I'm sure the compiler would help you find out, there are a few problems in this:
1. You treat str as if it's a single char, when in fact it's a char array (char[]). If you want to copy an element in str to temp, you have to do it like str[i] = temp
2. You are not properly declaring your variables in your loops. You have to declare every variable before you use it, so this is wrong:
          for (i = 1; i = 100; i++) {
               if (i = position) {
                    str = temp[i + 1];
                    for (fillLoop = i + 1; fillLoop = 99; fillLoop++) {
                         str[fillLoop] = temp[fillLoop + 1];
          }It should instead be
          for (int i = 1; i = 100; i++) {
               if (i = position) {
                    str = temp[i + 1];
                    for (int fillLoop = i + 1; fillLoop = 99; fillLoop++) {
                         str[fillLoop] = temp[fillLoop + 1];