Completed Lab

AliceAndBobEngine.java

@@ -4,13 +4,19 @@
  * @date 5/19/21 5:05 PM
  */
 public class AliceAndBobEngine {
+    private String name1 = "Alice";
+    private String name2 = "Bob";
     /**
      * return `true` if the input value is "Alice"
      * @param input - this value is variable: it has the potential to be many things
      * @return `true` if `input` is "Alice"
      */
     public Boolean isAlice(String input) {
-        return null;
+        if(input.equals(name1))
+        return true;
+        else
+        return false;
+
     }
 
     /**
@@ -19,7 +25,11 @@ public Boolean isAlice(String input) {
      * @return `true` if `input` is "Bob"
      */
     public Boolean isBob(String input) {
-        return null;
+        if(input.equals(name2))
+        return true;
+        else 
+        return false;
+
     }
 
     /**
@@ -28,7 +38,11 @@ public Boolean isBob(String input) {
      * @return `true` if `input` is "Alice" or "Bob"
      */
     public Boolean isAliceOrBob(String input) {
-        return null;
+        if(input.equals(name1) || input.equals(name2))
+        return true;
+        else
+        return false;
+
     }
 
     /**
@@ -42,6 +56,12 @@ public Boolean isAliceOrBob(String input) {
      * @return respective String value
      */
     public String getGreeting(String input) {
-        return null;
+        if(input.equals(name1))
+        return "Hello, Alice!";
+        else if(input.equals(name2))
+        return "Hello, Bob!";
+        else
+        return "Begone, " + input + "! You're a stranger!";
+
     }
 }