Lab Description:
This purpose of this Lab was to create a temperature simulator for the four seasons. This lab covered concepts of ‘while’ loops, ‘for’ loops, conditional statements, specifically ‘if’ statements and ‘switch’ cases. Other concepts include, integer comparisons, string comparisons and basic input and output.
Code:
package Lab1;
import java.util.Scanner;
import java.util.Random;
public class TempSimulator {
public static void main(String[] args) {
int seasonChoice, numSimValue, firstTemp = 0, lastTemp = 0, lowTemp, highTemp, sumTemp =0, randTempValue;
int avgTemp=0;
Scanner season = new Scanner(System.in); //Used for capturing user input
Scanner numSim = new Scanner(System.in); //Used for capturing user input
Random randTemp = new Random(); //Creates a random number generator object
Scanner loopControl = new Scanner(System.in);
String run = "yes";
//Display Menu of Season
while(run.equals("yes"))
{
System.out.println("Select Season");
System.out.println("1 - Winter\n2 - Spring\n3 - Summer\n4 - Fall\n");
System.out.println("Choice: ");
seasonChoice = season.nextInt();
System.out.println("Enter Number of Simulations to Run: ");
numSimValue = numSim.nextInt();
lowTemp = 99999; // Initial Value of Low Temp
highTemp = 0; // Initial Value of High Temp
//Switch
switch (seasonChoice)
{
//Winter
case 1:
for(int count = 0; count < numSimValue; count++){
//Generate a random number between 20-40
randTempValue = 20 + randTemp.nextInt(20);
//captures the first iteration of the loop
if (count == 0){
firstTemp=randTempValue;
}
//checks to see if the current random temperature is lower than the stored lowest.
if (randTempValue = highTemp){
highTemp = randTempValue;
}
//Stores the last value in the iteration
if (count == (numSimValue - 1)){
lastTemp = randTempValue;
}
//Adds all the Generated Temperatures
sumTemp += randTempValue;
}
//Calculate the average of all the generated temperatures.
avgTemp = sumTemp/numSimValue;
break;
case 2:
//Spring
for(int count = 0; count < numSimValue; count++){
randTempValue = 40 + randTemp.nextInt(30);
if (count == 0){
firstTemp=randTempValue;
}
if (randTempValue = highTemp){
highTemp = randTempValue;
}
if (count == (numSimValue - 1)){
lastTemp = randTempValue;
}
sumTemp += randTempValue;
}
avgTemp = sumTemp/numSimValue;
break;
case 3:
//Summer
for(int count = 0; count < numSimValue; count++){
randTempValue = 70 + randTemp.nextInt(20);
if (count == 0){
firstTemp=randTempValue;
}
if (randTempValue = highTemp){
highTemp = randTempValue;
}
if (count == (numSimValue - 1)){
lastTemp = randTempValue;
}
sumTemp += randTempValue;
}
avgTemp = sumTemp/numSimValue;
break;
case 4:
//Fall
for(int count = 0; count < numSimValue; count++){
randTempValue = 40 + randTemp.nextInt(20);
if (count == 0){
firstTemp=randTempValue;
}
if (randTempValue = highTemp){
highTemp = randTempValue;
}
if (count == (numSimValue - 1)){
lastTemp = randTempValue;
}
sumTemp += randTempValue;
}
avgTemp = sumTemp/numSimValue;
break;
default:
System.out.println("Invalid Season Choice.\n");
continue;
}
//Print Out to User
System.out.printf("First Temperature: %d\n", firstTemp);
System.out.printf("Last Temperature: %d\n", lastTemp);
System.out.printf("Lowest Temperature: %d\n", lowTemp);
System.out.printf("Highest Temperature: %d\n", highTemp);
System.out.printf("Sum of Temperature: %d\n", sumTemp);
System.out.printf("Average Temperature: %d\n", avgTemp);
//asks user if they would like to rerun the simulation
System.out.println("Would You Like to run Simulation Again? yes/no: ");
run = loopControl.nextLine();
}
}
}
Screenshot:
