Program To Maintain A List Of High Scores Obtained In A Game

I am stuck on what to put in my functions for this question: Write a program to maintain a list of the high scores obtained in a game. The program should first ask the user how many scores they want to maintain and then repeatedly accept new scores from the user and should add the score to the list of high scores (in the appropriate position) if it is higher than any of the existing high scores. You must include the following functions:

-initialiseHighScores () which sets all high scores to zero.

-printHighScores() which prints the high scores in the format: "The high scores are 345, 300, 234", for all exisiting high scores in the list (remember that sometimes it won't be full).

-higherThan() which takes the high scores and a new score and returns whether the passed score is higher than any of those in the high score list.

-insertScore() which takes the current high score list and a new score and updates it by inserting the new score at the appropriate position in the list

here are my functions the insertScore is missing because I am having troubles with it.

public static void initialiseHighScores (int[] scores, int size)
{
for (int i = 0; i < size; i++)
{
scores [i] = 0;
}
}
public static boolean higherThan (int[] scores, int size, int newScore)
{

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