Thread: Java help. I need to print out frequency of words in a String using LinkedLists

Hello, I am new here and I am learning to code. I am doing an exercise in which I need to find the frequency of words in a given string and put them in a LinkedList. I feel as though I am fairly close but no cigar. Any help would be appreciated.

public static void main(String[] args)
{
String test = "Informatics is the future It is a bridge to all things useful Informatics harnesses the power and possibility of digital technology to transform data and information into knowledge that people use every day This strong focus on the human use of computing helps people to interact with technology in the best and most efficient way possible Computer scientist believe informatics is the human part of the IT equation making computer software and hardware relatable accessible and enjoyable to use";
String lower = test.toLowerCase();
String[] split = lower.split(" ");
LinkedList<String> words = new LinkedList<>(Arrays.asList(split));
String strings = new String();
LinkedList<Integer> count = new LinkedList<>();
for(int j = 0; j<split.length; j++)
{
//System.out.println(split[j]);
for (int i = 0; i < test.length(); i++)
{
if (words.contains(test))
{
int index = words.indexOf(test);
count.set(index, count.get(index) + 1);
}
else
{
words.add(strings);
count.add(1);
}
}


}

for (int i = 0; i < words.size(); i++)
{
System.out.println(strings + " : " + count.get(i));


}
}