diff --git a/src/main/java/seedu/staffsnap/commons/util/StringUtil.java b/src/main/java/seedu/staffsnap/commons/util/StringUtil.java
index 5409d3c125e..3fe3b5730ce 100644
--- a/src/main/java/seedu/staffsnap/commons/util/StringUtil.java
+++ b/src/main/java/seedu/staffsnap/commons/util/StringUtil.java
@@ -39,14 +39,15 @@ public static boolean containsWordIgnoreCase(String sentence, String word) {
 
     /**
      * Returns true if the {@code sentence} contains the {@code word}.
-     *   Ignores case, but a full word match is required.
+     *   Ignores case.
      *   <br>examples:<pre>
-     *       containsWordIgnoreCase("ABc def", "abc") == true
-     *       containsWordIgnoreCase("ABc def", "DEF") == true
-     *       containsWordIgnoreCase("ABc def", "AB") == false //not a full word match
+     *       containsStringIgnoreCase("ABc def", "abc") == true
+     *       containsStringIgnoreCase("ABc def", "DEF") == true
+     *       containsStringIgnoreCase("ABc def", "AB") == true
+     *       containsStringIgnoreCase("ABc def", "acd") == false // "acd" is not a substring in "ABc def"
      *       </pre>
-     * @param sentence cannot be null
-     * @param word cannot be null, cannot be empty, must be a single word
+     * @param sentence a String that is not null
+     * @param word a String that is not empty and is not null
      */
     public static boolean containsStringIgnoreCase(String sentence, String word) {
         requireNonNull(sentence);
diff --git a/src/main/java/seedu/staffsnap/logic/commands/FilterCommand.java b/src/main/java/seedu/staffsnap/logic/commands/FilterCommand.java
index 46a7d349707..abdd2877232 100644
--- a/src/main/java/seedu/staffsnap/logic/commands/FilterCommand.java
+++ b/src/main/java/seedu/staffsnap/logic/commands/FilterCommand.java
@@ -52,8 +52,8 @@ public CommandResult execute(Model model) {
     }
 
     /**
-     * Checks if the applicant exists.
-     * @param other Other applicant.
+     * Checks if the two FilterCommand objects are equivalent, by comparing the equivalence of their predicates.
+     * @param other Other FilterCommand.
      * @return true if equals, false if not equals.
      */
     @Override
@@ -68,7 +68,6 @@ public boolean equals(Object other) {
         }
 
         FilterCommand otherFilterCommand = (FilterCommand) other;
-        System.out.println("predicate = " + predicate);
         return predicate.equals(otherFilterCommand.predicate);
     }
 
diff --git a/src/main/java/seedu/staffsnap/logic/parser/FilterCommandParser.java b/src/main/java/seedu/staffsnap/logic/parser/FilterCommandParser.java
index 16cf755c90c..f73f075e627 100644
--- a/src/main/java/seedu/staffsnap/logic/parser/FilterCommandParser.java
+++ b/src/main/java/seedu/staffsnap/logic/parser/FilterCommandParser.java
@@ -26,7 +26,6 @@
 /**
  * Parses input arguments and creates a new FilterCommand object
  */
-
 public class FilterCommandParser implements Parser<FilterCommand> {
 
     /**
diff --git a/src/main/java/seedu/staffsnap/logic/parser/ParserUtil.java b/src/main/java/seedu/staffsnap/logic/parser/ParserUtil.java
index d8581013157..11842dbedd4 100644
--- a/src/main/java/seedu/staffsnap/logic/parser/ParserUtil.java
+++ b/src/main/java/seedu/staffsnap/logic/parser/ParserUtil.java
@@ -218,8 +218,9 @@ public static boolean arePrefixesPresent(ArgumentMultimap argumentMultimap, Pref
 
     /**
      * Parses a {@code String status} into a {@code Status}.
+     *
      * @param status String representation of Status
-     * @return Status if successful, or null of no matching status is found.
+     * @return Status if successful, or null if no matching status is found.
      */
     public static Status parseStatus(String status) {
         requireNonNull(status);
@@ -228,6 +229,7 @@ public static Status parseStatus(String status) {
 
     /**
      * Parses a {@code String score} into a {@code Double}.
+     *
      * @param score String representation of score
      * @return Double score which is the average rating of all interviews
      * @throws ParseException if a NumberFormatException is caught
diff --git a/src/main/java/seedu/staffsnap/model/applicant/Applicant.java b/src/main/java/seedu/staffsnap/model/applicant/Applicant.java
index 212ebc7af82..583dd461897 100644
--- a/src/main/java/seedu/staffsnap/model/applicant/Applicant.java
+++ b/src/main/java/seedu/staffsnap/model/applicant/Applicant.java
@@ -223,8 +223,7 @@ public void setStatus(Status status) {
     public Double getScore() {
         List<Interview> interviews = getInterviews();
         Double totalScore = 0.;
-        for (Interview interview: interviews
-             ) {
+        for (Interview interview: interviews) {
             totalScore += new Double(interview.rating.value);
         }
         Double averageScore = totalScore / interviews.size();
diff --git a/src/main/java/seedu/staffsnap/model/applicant/CustomFilterPredicate.java b/src/main/java/seedu/staffsnap/model/applicant/CustomFilterPredicate.java
index 34df9a85bd5..fbfa6ae530f 100644
--- a/src/main/java/seedu/staffsnap/model/applicant/CustomFilterPredicate.java
+++ b/src/main/java/seedu/staffsnap/model/applicant/CustomFilterPredicate.java
@@ -47,7 +47,7 @@ public CustomFilterPredicate(Name name, Phone phone, Email email, Position posit
     }
 
     /**
-     * @param applicant the input argument
+     * @param applicant the applicant to be tested.
      * @return true if applicant matches all specified fields in the predicate
      */
     @Override