Checkpoint 3

app/src/main/java/hatelace/Address.java

@@ -10,4 +10,8 @@ public class Address {
     public int getAddress() {
         return address;
     }
+
+    public String toString() {
+        return Integer.toString(address);
+    }
 }

app/src/main/java/hatelace/Instruction.java

@@ -15,7 +15,7 @@ public abstract class Instruction {
 
         for (Object operand : this.operands()) {
             sb.append(" ");
-            sb.append(operand);
+            sb.append(operand.toString());
         }
 
         return sb.toString();

app/src/main/java/hatelace/IntWord.java

@@ -7,6 +7,7 @@ public class IntWord extends Word {
         this.value = value;
     }
 
+    @Override
     public Integer getValue() {
         return value;
     }
@@ -26,4 +27,8 @@ public class IntWord extends Word {
     public Word divide(Word other) {
         return new IntWord(value / (Integer) other.getValue());
     }
+
+    public String toString() {
+        return value.toString();
+    }
 }

app/src/main/java/hatelace/Word.java

@@ -1,9 +1,10 @@
 package hatelace;
 
 public abstract class Word {
-    public abstract <T> T getValue();
+    public abstract Integer getValue();
     public abstract Word add(Word other);
     public abstract Word subtract(Word other);
     public abstract Word multiply(Word other);
     public abstract Word divide(Word other);
+    public abstract String toString();
 }