I didn't read the assignment but I can give you some basic code which you can finetune:

char[] array1 = {'h','e','l','l','o','!'};
char[] array2 = {'h','e','l','l','o'};
boolean areEqual = false;

if(array1.length == array2.length){
      for(int i = 0; i < array1.length; i++){
             if(array1[i] != array2[i]){
                   break; //stop the for loop, continues at the next comment
             }
             if(i == array1.length-1){
                    areEqual = 1;
             }
      }
      //And by next comment I mean this one
}