feat:created a file and implementef code for AuditLog

Author: brooklynharden

lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank/AuditLog.java

@@ -0,0 +1,45 @@
+package com.codedifferently.lesson17.bank;
+
+import java.util.ArrayList;
+
+public class AuditLog {
+    private ArrayList<String> log;
+
+    /**
+     * Constructor that creates a new AuditLog
+     * 
+     */
+    public AuditLog(){
+        this.log = new ArrayList<>();
+    }
+
+    
+    /**
+     * This adds audit entry to the log
+     * 
+     * @param audit The audit entry to add to the log
+     */
+    public void addToList(String audit){
+        log.add(audit);
+    }
+
+    /**
+     * Gets a copy of all audit log entries
+     * 
+     * @return A list of all audit log entries
+     */
+    public ArrayList<String> getLogEntries(){
+        return new ArrayList<>(log);
+    }
+
+    /**
+     * Gets the number of entries in the audit log
+     * 
+     * @return The number of audit log entries
+     */
+public int getLogSize(){
+    return log.size();
+}
+    
+    
+}