rshepherd

class DoublePointer {
  String s;
  public DoublePointer(String s){
    this.s = s;
  }
}

public class IdentitySwitch {
  public static void main(String[] args) {
    DoublePointer dp = new DoublePointer("unchanged");

rshepherd

public class IdentitySwitch {
  public static void main(String[] args) {
    String s = "unchanged";
    System.out.println(s);
    foo(s);
    System.out.println(s);
  }
  
  public void foo(String s) {
    s = "changed"

rshepherd

String s1("1");
String s2("2");
cout << s1 << s2 << endl;

rshepherd

class A { 
  protected int a;
  public A() {
    a = 10;
  }
}

class B extends A { 
  private int b;
  public B() {

rshepherd

// Let me know if you see any mistakes!!

public class Rectangle {

    private int length;
    private int width;

    public Rectangle() {}

    public Rectangle(int width, int length) {

rshepherd

import java.util.*;

// Let me know if you find any mistakes!!

public class FinalReview {

    public static void main(String[] args) {
        System.out.println("Question 1:");
        List<String> list = new ArrayList<>();
        list.add("1");

rshepherd

public class StackExercises {

    public static void main(String[] args) {
        // Reverse
        System.out.println("Reverse:");
        System.out.println(
          "12345 => " + reverse("12345") + '\n' +
          "randy => " + reverse("randy") + '\n' +
          "2 => "     + reverse("2")
        );

rshepherd

public class BigO {

    // Big O notation is used in Computer Science to describe the performance or complexity of an algorithm.

    // Big O specifically describes the worst-case scenario, and can be used to describe
    // the execution time required or the space used

    // O(1) describes an algorithm that will always execute in the same time (or space)
    // regardless of the size of the input data set.
    private String[] strings = { "", null };

rshepherd

public class Recursion {

    public static class ExampleOne
    {
        public static void main (String args[])
        {
            count(0);
        }

        public static void count (int index)

rshepherd

public class TestDigitalWallet {

    public static void main(String[] args) {
        DigitalWallet w1 = new DigitalWallet(1);
        w1.deposit(10000);
        w1.withdraw(5000);
        DigitalWallet.setMaxWithdrawalPct(.75);
        System.out.println(w1.canWithdraw(4000)); // false

        DigitalWallet w2 = new DigitalWallet(2, 20000);