passed all tests

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

@@ -39,9 +39,7 @@ public class StringsAndThings {
      *           withoutString("Hello there", "x") // Should return "Hello there"
      */
     public String withoutString(String base, String remove){
-        for (int i=0; i<base.length(); i++){
-            
-        }
+        return base.replace(remove,"");
     }
 
     /**
@@ -75,8 +73,25 @@ public class StringsAndThings {
      *           gHappy("xxgxx") // Should return  false
      *           gHappy("xxggyygxx") // Should return  false
      */
-    public Boolean gIsHappy(String input){
-        return null;
+    public boolean gIsHappy(String input){
+        int numOfG = numberOfOccurrences(input, 'g');
+        int numOfHappyG = 0;
+        for (int i=0; i<input.length()-1; i++){
+            if (input.charAt(i) == 'g' && (input.charAt(i-1) == 'g' || input.charAt(i+1) == 'g')){
+                numOfHappyG++;
+            }
+        }
+        return (numOfG == numOfHappyG);
+    }
+
+    public int numberOfOccurrences(String input, char a){
+        int numberOfOccurrences = 0;
+        for (int i = 0; i<input.length(); i++){
+            if (input.charAt(i) == a){
+                numberOfOccurrences++;
+            }
+        }
+        return numberOfOccurrences;
     }
 
 
@@ -88,6 +103,12 @@ public class StringsAndThings {
      *            countTriple("a") // Should return 0
      */
     public Integer countTriple(String input){
-        return null;
+        int numOfTriples = 0;
+        for (int i=1; i<input.length()-1; i++){
+            if (input.charAt(i) == input.charAt(i-1) && input.charAt(i) == input.charAt(i+1)){
+                numOfTriples++;
+            }
+        }
+        return numOfTriples;
     }
 }

src/test/java/io/zipcoder/StringsAndThingsTest.java

@@ -92,7 +92,7 @@ public class StringsAndThingsTest {
     @Test
     public void gIsHappyTest3(){
         Boolean actual = stringsAndThings.gIsHappy("xxggyygxx");
-        Assert.assertTrue(actual);
+        Assert.assertFalse(actual);
     }
 
     @Test