completed string cheese lab

StringParser.java

      */
     public static String upperCaseString(String s)
     {
-        return null;
+        return s.toUpperCase();
     }
 
     /**
      * @return String
      */
     public static String lowerCaseString(String s) {
-        return null;
+        return s.toLowerCase();
     }
 
     /**
      * @return String
      */
     public static Character getFirstCharacter(String s) {
-        return null;
+        return s.toCharArray()[0];
     }
 
     /**
      * @return String
      */
     public static Character getNthCharacter(String s, Integer n) {
-        return null;
+        return s.toCharArray()[n];
     }
 
     /**
      * @return String
      */
     public static String upperCaseFirstCharacter(String s) {
-        return null;
+        String string = s.substring(0, 1).toUpperCase() + s.substring(1);        
+        return string;
     }
 
     /**
      * @return String
      */
     public static String camelCaseString(String s) {
-        return null;
+        String[] stringArr = s.split(" ");
+        String answer = "";
+        
+        for(int i = 0; i < stringArr.length; i ++)
+        {
+            String word = stringArr[i];
+            
+            word = word.toLowerCase();
+           
+            word = word.substring(0,1).toUpperCase() + word.substring(1);
+            answer += word;
+            System.out.println(answer);
+        }
+        
+        return answer;
     }
 
     /**
      * @return String
      */
     public static String snakeCaseString(String s) {
-        return null;
+        String[] stringArr = s.split(" ");
+        String answer = "";
+        
+        for(int i = 0; i < stringArr.length; i++)
+        {
+            String word = stringArr[i];
+            word = word.toLowerCase();
+            if(i + 1 != stringArr.length)
+            {
+                answer += word + "_";
+            } else {
+                answer += word;
+            }
+        }
+        return answer;
     }
 
     /**
      * @return String
      */
     public static Integer getLength(String s) {
-        return null;
+        return s.toCharArray().length;
     }
 
     /**
      * @return String
      */
     public static Boolean isEqual(String s1, String s2) {
-        return null;
+        if(s1.equals(s2))
+        {
+            return true;
+        } else {
+            return false;
+        }
     }
 
     /**
      * @return String
      */
     public static Boolean isEqualIgnoreCase(String s1, String s2) {
-        return null;
+        if(s1.equalsIgnoreCase(s2))
+        {
+            return true;
+        } else {
+            return false;
+        }
     }
 }

package.bluej

 dependency1.from=StringParserTest
 dependency1.to=StringParser
 dependency1.type=UsesDependency
-editor.fx.0.height=722
+editor.fx.0.height=716
 editor.fx.0.width=800
 editor.fx.0.x=455
-editor.fx.0.y=51
+editor.fx.0.y=23
 objectbench.height=164
 objectbench.width=776
 package.divider.horizontal=0.6