public static void CountWordFrequency(ArrayList<String> UserString) {
//creating an array list to store every word
//each element in the UserString is one line
ArrayList<String> words_storage = new ArrayList<String>();
String words[]= {};
for(int i=0;i<UserString.size();i++) {//this is outer loop to access every line of the ArrayList
//we need to split the line and put them inside the array String
words = UserString.get(i).split("\\s");
//we still need to work with the "\'" , the upper case, and the dot and comma
for(int j=0;j<words.length;j++) {
for(int k=0;k<words[j].length();k++) {//access every character of one word
if(Character.isUpperCase(words[j].charAt(k))) {//first I want to convert them to Lower Case first
words[j]=words[j].toLowerCase();
}
if(!Character.isLetterOrDigit(words[j].charAt(k)) && words[j].charAt(k)!=',' && words[j].charAt(k)!= '.') {
//I am separating the comma and dot situations with the ' \' '
//need more work on this
if(words[j].compareTo("can't")==0) {
words[j]=words[j].replace(words[j].charAt(k), '\0');
words[j]=words[j].replace(words[j].charAt(k+1), '\0');
words[j] = "can";
words_storage.add("not");
}
else {
words[j]=words[j].replace(words[j].charAt(k), '\0');
words_storage.add("is");
}
}
//now if the that character is comma or dot
if(words[j].charAt(k)==',' ||words[j].charAt(k)=='.') {
words[j]=words[j].replace(words[j].charAt(k), '\0');
}
}//done with one-word loop
}
//now we need to store every element of the String Array inside the array list
for(int j=0;j<words.length;j++) {
words_storage.add(words[j]);
}
}//this is the end of the outer loop
//since it's harder to change the content of element in array list compared to array
//we need to store elements in another array
String[] array = new String[words_storage.size()];
for(int a =0;a<words_storage.size();a++) {
array[a] = words_storage.get(a);
}
//now when we are done with storing elements, we need to sort alphabetically
for(int a=0;a<array.length;a++) {
for(int b = a+1;b<array.length;b++) {
if(array[a].compareTo(array[b])>0) {
String temp = array[a];
array[a] = array[b];
array[b] = temp;
}
}
}
//now we count the frequency of each element in the Array array
int marker = 0;//marker will help me skip the word that already counted in the frequency
for(int x =0;x<array.length;x=marker) {
int counter = 1;
for(int y =x+1; y< array.length;y++) {
if(array[x].compareTo(array[y])==0) {//if they have the same content then we increase the counter and mark the y
counter++;
marker = y+1;
}
}
if(counter==1) {//if we did not find any similar word, we need to increase the marker by one to check on the next word
marker++;
}
System.out.println(array[x]+":"+counter); //now just print it out
}
}
嘿伙计们，我正在尝试计算给定输入中的词频，它有很多行。我将它存储在 ArrayList 中并将其作为参数。首先，我尝试先按 aphabetically 对它们进行排序
现在，我正在尝试删除单词 can't 中的字符 '。但它似乎没有用。所以我尝试使用替换方法，但是当我用 '\0' 替换它时它会留下空白
希望我得到了一些解决方案。提前致谢。