Skip to content

Instantly share code, notes, and snippets.

What would you like to do?
This is the solution to the Find Range problem from Assignment 2 of the Stanford CS106A Introduction to Programming Methodology Class
* File:
* Name:
* Section Leader:
* --------------------
* This file is the starter file for the FindRange problem.
import acm.program.*;
public class FindRange extends ConsoleProgram {
private static final int sentinal = 0;
public void run() {
private void displayWelcomeMessage() {
println("This program finds the largest and smallest numbers");
private void findRange() {
int firstNumber = readInt("?"); //asking user for the first number
if (firstNumber == sentinal) {
println("this is not a valid first value");
} //if the first number is the sentinal, displays message
int smallestNumber = firstNumber; //the first number is currently the smallest number
int largestNumber = firstNumber; //the first number is also the largest number
/*Pre-condition: the first number does not equal to the sentinal.
* compares each new number the user enters to the existing smallest and largest numbers,
* and stores them as the smallest or largest if they are smallest or largest
while ( firstNumber != sentinal) {
int secondNumber = readInt ("?"); //requests user to input the next number
if (secondNumber < smallestNumber) { //compares the new number to the smallest number
if (secondNumber != sentinal) {
smallestNumber = secondNumber;
// if the new number is the smaller than the smallest number,
//it is now stored as the smallest number
if (secondNumber > largestNumber) { //compares the new number to the largest number
if (secondNumber != sentinal) {
largestNumber = secondNumber;
//if the new number is larger than the largets number,
//it is now stored as the largest number
if(secondNumber == sentinal) { //if the new number is equal to the sentinal
println ("smallest: " + smallestNumber); //prints out smallest number
println ("largest: " + largestNumber); //pringt out largest number
firstNumber = sentinal; //assigns "sentinal" to the first number to stop the while loop
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.