completed few methods

StringUtilities.java

@@ -1,42 +1,25 @@
- //import java.utils.*;
+//import java.utils.*;
 public class StringUtilities {
-   public Character getMiddleCharacter(String word){
-       int  n= word.length();
-       char ch;
-       int val=n%2;
-       int i=0;
-       if(val== 0)
-       {  
-          i =n/2;
-          ch=word.charAt(i);
-           //System.out.println(val);
-           return ch;
-          
-        }
-          else
-          {
-          i=(int)Math.floor(n/2);
-          ch= word.charAt(i -1);
-          return ch;
-        }
-    }    
-       
-   
+    public Character getMiddleCharacter(String word){
+        return word.charAt(word.length()/2);
 
+    }
    
-   public String removeCharacter(String value, char charToRemove){
-       int n=value.length();
-       for(int i=0;i<n;i++)
-       {
-           
-        }
-       
-    
-    
-   return null;
-}
    
-   public String getLastWord(String value) {
-       return null;
-   }
+    public String removeCharacter(String value, char charToRemove){
+        String s="";
+        s=s+charToRemove;
+        String str="";
+        str =str+value.replace(s,"");       
+
+        return str;
+    }
+
+    public String getLastWord(String value) {
+        //int n=value.length();
+        String str=value.substring(value.lastIndexOf(" ")+1);
+
+        return str;
+    }
+
 }