Class version (e78b7911) · Commits · Zane Safi Mroue / hw1p1

src/edu/bu/ec504/hw1p1/DistinctCounter.java

+11 −9

Original line number	Diff line number	Diff line
		@@ -4,15 +4,17 @@ package edu.bu.ec504.hw1p1;
		* Attempts to approximate the number of distinct elements seen so far.
		*/
		public abstract class DistinctCounter {
		// FIELDS
		final private Byte[] state;

		// METHODS

		// CONSTRUCTORS
		// ... CONSTRUCTORS

		/**
		* This constructor cannot be used.
		*/
		private DistinctCounter() {
		state = new Byte[0];
		}
		private DistinctCounter() { state = null; }

		/**
		* Constructs an object backed by a given memory size.
		@@ -31,7 +33,7 @@ public abstract class DistinctCounter {
		System.arraycopy(initialState, 0, state, 0, initialState.length);
		}

		// OPERATIONAL
		// ... OPERATIONAL

		/**
		* Log a new element that is seen.
		@@ -45,7 +47,7 @@ public abstract class DistinctCounter {
		*/
		abstract Integer numDistinct();

		// INFORMATIONAL
		// ... INFORMATIONAL
		/**
		* outputs the current state of the DistinctCounter
		* */
		@@ -53,7 +55,7 @@ public abstract class DistinctCounter {
		return state;
		}


		// FIELD
		final private Byte[] state;
		// NESTED CLASSES
		public static class NotYetImplemented extends RuntimeException {
		}
		}

+4 −6

Original line number	Diff line number	Diff line
		package edu.bu.ec504.hw1p1;

		import sun.reflect.generics.reflectiveObjects.NotImplementedException;

		public class myDistinctCounter extends DistinctCounter {

		/**
		@@ -9,7 +7,7 @@ public class myDistinctCounter extends DistinctCounter {
		*/
		public myDistinctCounter(int stateSize) {
		super(stateSize);
		throw new NotImplementedException(); // replace this with your code!
		throw new NotYetImplemented(); // replace this with your code!
		}

		/**
		@@ -17,7 +15,7 @@ public class myDistinctCounter extends DistinctCounter {
		*/
		public myDistinctCounter(Byte[] initialState) {
		super(initialState);
		throw new NotImplementedException(); // replace this with your code!
		throw new NotYetImplemented(); // replace this with your code!
		}

		/**
		@@ -25,7 +23,7 @@ public class myDistinctCounter extends DistinctCounter {
		*/
		@Override
		void saw(String newElement) {
		throw new NotImplementedException(); // replace this with your code!
		throw new NotYetImplemented(); // replace this with your code!
		}

		/**
		@@ -33,6 +31,6 @@ public class myDistinctCounter extends DistinctCounter {
		*/
		@Override
		Integer numDistinct() {
		throw new NotImplementedException(); // replace this with your code!
		throw new NotYetImplemented(); // replace this with your code!
		}
		}