Which of the following does git add do? For example: git add MyClass.java A. Stages MyClass.java so that it's changes are committed to the local repository on the next commit B. Adds a new file, MyClass.java to the git repository. This is adds only purpose, and so we only do it the first time we add MyClass to the repository, and not when we make changes. C. Sends the current state of MyClass.java directly to the remote repository D. Creates a new branch that contains only the file MyClass.java

Write the LCSMatrix.java: import java.util.*;   // Your code here // - Import any required additional packages // - Declare any desired classes to be used by LCSMatrix   public class LCSMatrix { private int rowCount; private int columnCount;        //    // Your code here    //     public LCSMatrix(String str1, String str2) { this.rowCount = (int) str1.length(); this.columnCount = (int) str2.length();   // Your code here }   // Your code here, if needed   // Returns the number of columns in the matrix, which also equals the length // of the second string passed to the constructor. public int getColumnCount() { return columnCount; }   // Returns the matrix entry at the specified row and column indices, or 0 if // either index is out of bounds. public int getEntry(int rowIndex, int columnIndex) { // Your code here (remove placeholder line below)       return 0; }   // Returns the number of rows in the matrix, which also equals the length // of the first string passed to the constructor.…

CAN AN EXPERT HELP FIX MY CODE here is my code import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.Collections; import java.util.List; public class User implements Comparable<User> { private String username; private String password; public User(String username, String password) { this.username = username; this.password = password; } @Override public int compareTo(User other) { int cmp = this.password.length() - other.password.length(); if (cmp != 0) { return cmp; } cmp = this.password.toLowerCase().compareTo(other.password.toLowerCase()); if (cmp != 0) { return cmp; } return this.username.toLowerCase().compareTo(other.username.toLowerCase()); } @Override public String toString() { return String.format("%20s%20s", password, username); } public static void main(String args[]){ List<User> l= new ArrayList<>(); try{ BufferedReader br= new…

module is csci262 system security. Need help on this. TIA!