update,

it114105/itp4510/Lab03/Lab3.1/src/StringComparator.java

@@ -0,0 +1,22 @@
+public class StringComparator implements Comparator{
+    public boolean isEqualTo(Object item1, Object item2) {
+		return ((String) item1).compareTo((String) item2) == 0;
+
+	}
+
+	public boolean isLessThan(Object item1, Object item2) {
+		return((String) item1).compareTo((String) item2) < 0;
+	}
+
+	public boolean isLessThanOrEqualTo(Object item1, Object item2) {
+		return (isEqualTo(item1, item2) || isLessThan(item1, item2));
+	}
+
+	public boolean isGreaterThan(Object item1, Object item2) {
+		return (((String) item1).compareTo((String) item2) > 0);
+	}
+
+	public boolean isGreaterThanOrEqualTo(Object item1, Object item2) {
+		return (isEqualTo(item1, item2) || isGreaterThan(item1, item2));
+	}
+}