Passed tests

StringParser.java

@@ -1,4 +1,3 @@
-
 /**
  * An introduction to Strings and String methods.
  *
@@ -15,7 +14,8 @@ public class StringParser
      */
     public static String upperCaseString(String s)
     {
-        return null;
+        String uppercase = s.toUpperCase();
+        return uppercase;
     }
 
     /**
@@ -26,7 +26,8 @@ public class StringParser
      * @return String
      */
     public static String lowerCaseString(String s) {
-        return null;
+        String lowercase = s.toLowerCase();
+        return lowercase;
     }
 
     /**
@@ -37,7 +38,8 @@ public class StringParser
      * @return String
      */
     public static Character getFirstCharacter(String s) {
-        return null;
+        char firstChar = s.charAt(0);
+        return firstChar;
     }
 
     /**
@@ -49,7 +51,8 @@ public class StringParser
      * @return String
      */
     public static Character getNthCharacter(String s, Integer n) {
-        return null;
+        char nthChar = s.charAt(n);
+        return nthChar;
     }
 
     /**
@@ -60,7 +63,8 @@ public class StringParser
      * @return String
      */
     public static String upperCaseFirstCharacter(String s) {
-        return null;
+        String capitalized = s.substring(0, 1).toUpperCase() + s.substring(1);
+        return capitalized;
     }
 
     /**
@@ -72,7 +76,39 @@ public class StringParser
      * @return String
      */
     public static String camelCaseString(String s) {
-        return null;
+        StringBuilder camelCaseSB = new StringBuilder();
+
+        String capitalFirst = s.substring(0, 1).toUpperCase();    
+        camelCaseSB.append(capitalFirst);
+
+        for (int i = 1; i < s.length(); i++) {
+            if (s.charAt(i) == ' ') {
+                String nextCapital = s.substring(i + 1, i+ 2).toUpperCase();
+                camelCaseSB.append(nextCapital);
+                i++;
+            } else {
+                camelCaseSB.append(s.substring(i, i + 1).toLowerCase());
+            }
+        }
+
+        /* int firstSpace = s.indexOf(" ");
+        String capitalSecond = s.substring(firstSpace + 1, firstSpace + 2).toUpperCase() + s.substring(1);
+
+        String camelCaseString = capitalFirst.concat(capitalSecond);
+
+        int secondSpace = s.indexOf(" ", firstSpace + 1);
+
+        String secondWord;
+
+        if (secondSpace > 0) {
+        secondWord = s.substring(firstSpace, secondSpace);
+        } else {
+        secondWord = s.substring((firstSpace + 1),(s.length()));
+        } */
+
+        String camelCase = camelCaseSB.toString();
+
+        return camelCase;
     }
 
     /**
@@ -84,7 +120,22 @@ public class StringParser
      * @return String
      */
     public static String snakeCaseString(String s) {
-        return null;
+        StringBuilder snakeCaseSB = new StringBuilder();
+
+        // String capitalFirst = s.substring(0, 1).toUpperCase();    
+        // snakeCaseSB.append(capitalFirst);
+
+        for (int i = 0; i < s.length(); i++) {
+            if (s.charAt(i) == ' ') {
+                snakeCaseSB.append('_');
+            } else {
+                snakeCaseSB.append(s.substring(i, i + 1).toLowerCase());
+            }
+        }
+
+        String snakeCase = snakeCaseSB.toString();
+
+        return snakeCase;
     }
 
     /**
@@ -95,7 +146,7 @@ public class StringParser
      * @return String
      */
     public static Integer getLength(String s) {
-        return null;
+        return s.length();
     }
 
     /**
@@ -109,7 +160,13 @@ public class StringParser
      * @return String
      */
     public static Boolean isEqual(String s1, String s2) {
-        return null;
+        boolean  s3;
+        if (s1.equals(s2)) {
+            s3 = true;
+        } else {
+            s3 = false;
+        }
+        return s3;
     }
 
     /**
@@ -123,6 +180,12 @@ public class StringParser
      * @return String
      */
     public static Boolean isEqualIgnoreCase(String s1, String s2) {
-        return null;
+        boolean  s3;
+        if (s1.equalsIgnoreCase(s2)) {
+            s3 = true;
+        } else {
+            s3 = false;
+        }
+        return s3;    
     }
 }

package.bluej

@@ -4,18 +4,18 @@ dependency1.to=StringParser
 dependency1.type=UsesDependency
 editor.fx.0.height=722
 editor.fx.0.width=800
-editor.fx.0.x=455
-editor.fx.0.y=51
+editor.fx.0.x=560
+editor.fx.0.y=113
 objectbench.height=164
-objectbench.width=776
+objectbench.width=384
 package.divider.horizontal=0.6
 package.divider.vertical=0.6845018450184502
 package.editor.height=364
-package.editor.width=674
-package.editor.x=0
-package.editor.y=23
+package.editor.width=282
+package.editor.x=376
+package.editor.y=290
 package.frame.height=600
-package.frame.width=800
+package.frame.width=408
 package.numDependencies=1
 package.numTargets=2
 package.showExtends=true
@@ -31,12 +31,12 @@ target1.name=StringParser
 target1.showInterface=false
 target1.type=ClassTarget
 target1.width=100
-target1.x=150
+target1.x=50
 target1.y=120
 target2.height=50
 target2.name=StringParserTest
 target2.showInterface=false
 target2.type=UnitTestTargetJunit4
 target2.width=130
-target2.x=140
-target2.y=40
+target2.x=80
+target2.y=30