bhnascar

class InheritancePractice
{
    public static abstract class Vehicle
    {
        public int maxSpeed;     // In MPH
        public int acceleration; // In 0-60MPH secs

        public Vehicle(int maxSpeed, int acceleration) {
            this.maxSpeed = maxSpeed;
            this.acceleration = acceleration;

bhnascar

import java.util.*;

class ReadingPractice
{
    /* What is the return value of |mystery("hi")|?
     *
     * (A) hi
     * (B) hi5
     * (C) hi55
     * (D) mn

bhnascar

import java.util.*;

class Errors
{
    /* Adds the given value to everything in the ArrayList.
     *
     * This AddToAll method does not work correctly. Explain
     * why.
     *
     * Which of the following replacements for line 19 will fix the method?

bhnascar

import java.util.*;

class MoreArrayListTest
{
  public static void main(String[] args)
  {
    // Run all the tests.
    testNormalize();
    testShuffle();
    testRemoveDuplicates();

bhnascar

import java.util.*;

public class MoreArrayList
{
  // Think!
  //
  // What are the repeatable units of work?
  // This is what goes in the for loop.
  //
  // If you see the keyword "every" or "for every X do Y"

bhnascar

public class ArrayListTest
{
  public static void main(String[] args)
  {
    MyArrayList list = new MyArrayList(5);

    for (int i = 0; i < 1000; i++) {
      list.add(i);
    }

bhnascar

import java.util.*;

public class Solution
{
	public static class TicTacToe
	{
		/* 
		* This board will represent all the plays made in
		* the game so far.
		*

bhnascar

public void removeCol(int col) {
    for (int i = entries.size() - 1; i >= 0; i--) {
        SparseArrayEntry entry = entries.get(i);
        if (entry.getCol() > col) {
            // Fix the column number for this item because it's in a column
            // to the right of the column we're removing
            SparseArrayEntry fixedEntry = new SparseArrayEntry(entry.getRow(),
                                                               entry.getCol() - 1,
                                                               entry.getValue());
            entries.set(i, fixedEntry);

bhnascar

Let's write (part of) a tic-tac-toe game! 

Let's suppose the game board is represented using a 3x3 2D array of 
integers like this:

______________________
|      |      |      |
|   1  |   O  |   O  |
|______|______|______|
|      |      |      |

bhnascar

Let's imagine you're a really forgetful person, so you decide to make
a to-do list program to help you remember things. 

Everything that you want to do has a description and a time. For 
example, uh..."buy eggs at Costco on Wednesday". So let's represent 
things that you want to do with the following class:

public class ThingToDo
{
    private String description; // Ex. "Buy eggs at Costco"