All test cases passed

src/main/java/io/zipcoder/StringsAndThings.java

@@ -1,6 +1,9 @@
 package io.zipcoder;
 
 
+import java.sql.SQLOutput;
+import java.util.Locale;
+
 /**
  * @author tariq
  */
@@ -15,7 +18,14 @@ public class StringsAndThings {
      *           countYZ("day fyyyz"); // Should return 2
      */
     public Integer countYZ(String input){
-        return null;
+        int count = 0;
+        String[] words = input.split(" ");
+        for(int i = 0; i < words.length; i++){
+            if(words[i].charAt(words[i].length() - 1) == 'y' || words[i].charAt(words[i].length() - 1) == 'z'){
+                count += 1;
+            }
+        }
+        return count;
     }
 
     /**
@@ -28,7 +38,7 @@ public Integer countYZ(String input){
      *           removeString("Hello there", "x") // Should return "Hello there"
      */
     public String removeString(String base, String remove){
-        return null;
+        return base.replaceAll(remove, "");
     }
 
     /**
@@ -40,7 +50,25 @@ public String removeString(String base, String remove){
      *           containsEqualNumberOfIsAndNot("noisxxnotyynotxisi") // Should return true
      */
     public Boolean containsEqualNumberOfIsAndNot(String input){
-        return null;
+        int isCount = 0;
+        int notCount = 0;
+        int indexOf = input.indexOf("not");
+        String currentString = input;
+
+        while(indexOf >= 0){
+            currentString = currentString.replaceFirst("not", "");
+            indexOf = currentString.indexOf("not");
+            notCount++;
+        }
+        currentString = input;
+        indexOf = currentString.indexOf("is");
+        while(indexOf >= 0){
+            currentString = currentString.replaceFirst("is", "");
+            indexOf = currentString.indexOf("is");
+            isCount++;
+            System.out.println("found is");
+        }
+        return isCount == notCount;
     }
 
     /**
@@ -51,7 +79,15 @@ public Boolean containsEqualNumberOfIsAndNot(String input){
      *           gHappy("xxggyygxx") // Should return  false
      */
     public Boolean gIsHappy(String input){
-        return null;
+        for(int i = 1; i < input.length(); i++){
+            if(input.charAt(i) == 'g'){
+                //if the current character being examined is NOT the last or first character
+                if(input.charAt(i - 1) != 'g' && input.charAt(i + 1) != 'g'){
+                    return false;
+                }
+            }
+        }
+        return true;
     }
 
 
@@ -62,7 +98,15 @@ public Boolean gIsHappy(String input){
      *            countTriple("xxxabyyyycd") // Should return 3
      *            countTriple("a") // Should return 0
      */
-    public Integer countTriple(String input){
-        return null;
+    public Integer countTriple(String input){ //abcXXXabc   9 6
+        int count = 0;
+        for(int i = 0; i < input.length() - 3; i++){
+            if(input.charAt(i) == input.charAt(i + 1) &&
+                    input.charAt(i) == input.charAt(i + 2)){
+                count += 1;
+            }
+        }
+        return count;
     }
 }
+