JavaStringCheese

StringParser.java

@@ -15,7 +15,8 @@ public class StringParser
      */
     public static String upperCaseString(String s)
     {
-        return null;
+        String str;
+        return str= s.toUpperCase();
     }
 
     /**
@@ -25,8 +26,10 @@ public class StringParser
      * @param s
      * @return String
      */
-    public static String lowerCaseString(String s) {
-        return null;
+    public static String lowerCaseString(String s) 
+    {
+        String str;
+        return str = s.toLowerCase();
     }
 
     /**
@@ -36,8 +39,10 @@ public class StringParser
      * @param s
      * @return String
      */
-    public static Character getFirstCharacter(String s) {
-        return null;
+    public static Character getFirstCharacter(String s) 
+    {
+
+        return s.charAt(0);
     }
 
     /**
@@ -48,8 +53,10 @@ public class StringParser
      * @param n
      * @return String
      */
-    public static Character getNthCharacter(String s, Integer n) {
-        return null;
+    public static Character getNthCharacter(String s, Integer n)
+    {
+
+        return s.charAt(n);
     }
 
     /**
@@ -59,8 +66,10 @@ public class StringParser
      * @param s
      * @return String
      */
-    public static String upperCaseFirstCharacter(String s) {
-        return null;
+    public static String upperCaseFirstCharacter(String s) 
+    {
+        String str = s.substring(0,1).toUpperCase()+s.substring(1);
+        return str;
     }
 
     /**
@@ -71,10 +80,14 @@ public class StringParser
      * @param s
      * @return String
      */
-    public static String camelCaseString(String s) {
-        return null;
+    public static String camelCaseString(String s)
+    {
+        String [] list = s.split(" ");
+        String str1 = list[0];
+        String str2 = list[1];
+        return (""+str1.toUpperCase().charAt(0)+str1.toLowerCase().substring(1,str1.length())+str2.toUpperCase().charAt(0)+str2.toLowerCase().substring(1,str2.length()));
     }
-
+    
     /**
      * Takes a String and returns that string with each character lowercased
      * and then joined with an underscore
@@ -83,8 +96,19 @@ public class StringParser
      * @param s
      * @return String
      */
-    public static String snakeCaseString(String s) {
-        return null;
+    public static String snakeCaseString(String s) 
+    {
+        int n = s.length();
+        String str = "";
+        for(int i = 0; i < n; i++)
+        {
+            if(s.charAt(i) == ' ')
+            str = str + '_';
+            else
+            str = str + Character.toLowerCase(s.charAt(i));
+        }
+        return str;
+        
     }
 
     /**
@@ -94,8 +118,9 @@ public class StringParser
      * @param s
      * @return String
      */
-    public static Integer getLength(String s) {
-        return null;
+    public static Integer getLength(String s) 
+    {
+        return s.length();
     }
 
     /**
@@ -108,8 +133,17 @@ public class StringParser
      * @param s2
      * @return String
      */
-    public static Boolean isEqual(String s1, String s2) {
-        return null;
+    public static Boolean isEqual(String s1, String s2) 
+    {
+        if(s1.equals(s2))
+        {
+            return true;
+        }
+        else
+        {
+            return false;
+        }
+
     }
 
     /**
@@ -122,7 +156,9 @@ public class StringParser
      * @param s2
      * @return String
      */
-    public static Boolean isEqualIgnoreCase(String s1, String s2) {
-        return null;
+    public static Boolean isEqualIgnoreCase(String s1, String s2) 
+    {
+      return (s1.equalsIgnoreCase(s2));
+        
     }
 }

package.bluej

@@ -2,17 +2,17 @@
 dependency1.from=StringParserTest
 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.height=709
+editor.fx.0.width=813
+editor.fx.0.x=214
+editor.fx.0.y=23
 objectbench.height=164
-objectbench.width=776
+objectbench.width=461
 package.divider.horizontal=0.6
 package.divider.vertical=0.6845018450184502
 package.editor.height=364
 package.editor.width=674
-package.editor.x=0
+package.editor.x=431
 package.editor.y=23
 package.frame.height=600
 package.frame.width=800