Committed changes

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;
+        char firstLetter = s.charAt(0);
+
+        return firstLetter;
     }
 
     /**
      * @return String
      */
     public static Character getNthCharacter(String s, Integer n) {
-        return null;
+        char nLetter = s.charAt(n);
+
+        return nLetter;
     }
 
     /**
      * @return String
      */
     public static String upperCaseFirstCharacter(String s) {
-        return null;
+        String firstLetterUpper = s.substring(0,1).toUpperCase() + s.substring(1);
+
+        return firstLetterUpper;
     }
 
     /**
      * @return String
      */
     public static String camelCaseString(String s) {
-        return null;
+        String st = s.toLowerCase();
+        String[] arr = st.split(" ");
+        StringBuffer sb = new StringBuffer();
+
+        for (int i = 0; i < arr.length; i++) {
+            sb.append(Character.toUpperCase(arr[i].charAt(0)))
+            .append(arr[i].substring(1));
+        }          
+        
+       
+        
+        String a = sb.toString();
+        
+        
+        
+        return a;
+
     }
 
     /**
      * @return String
      */
     public static String snakeCaseString(String s) {
-        return null;
+        String lower = s.toLowerCase();
+        String a = lower.replaceAll("\\s","_");
+        
+        
+        return a;
     }
 
     /**
      * @return String
      */
     public static Integer getLength(String s) {
-        return null;
+        return s.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

 #BlueJ package file
-#Wed Oct 17 09:06:47 EDT 2018
+editor.fx.0.height=709
+editor.fx.0.width=800
+editor.fx.0.x=240
+editor.fx.0.y=23
+objectbench.height=101
+objectbench.width=776
+package.divider.horizontal=0.6
+package.divider.vertical=0.8007380073800738
+package.editor.height=427
+package.editor.width=674
+package.editor.x=227
+package.editor.y=43
+package.frame.height=600
+package.frame.width=800
+package.numDependencies=0
+package.numTargets=2
+package.showExtends=true
+package.showUses=true
 project.charset=UTF-8
+readme.height=58
+readme.name=@README
+readme.width=47
+readme.x=10
+readme.y=10
+target1.height=50
+target1.name=StringParser
+target1.showInterface=false
+target1.type=ClassTarget
+target1.width=100
+target1.x=140
+target1.y=10
+target2.height=50
+target2.name=StringParserTest
+target2.showInterface=false
+target2.type=UnitTestTargetJunit4
+target2.width=130
+target2.x=70
+target2.y=70