Lab Description:
In this lab we are required to re-do Lab#1 but with a few modifications which include utilizing specific methods; getWinterTemp, getSpringTemp, getSummerTemp, and get Fall Temp; which will return a random number within the specified ranges dictated by Lab #1. We are also asked to error check user inputs to eliminate non-integer values being able to be entered by the user.
As in Lab#1 we are also supposed to keep track of the same stats.
1- First temperature generated
2- Last temperature generated
3- Lowest temperature generated
4- Highest temperature generated
5- Total sum of all temperatures generated
6- Average for the season
Code:
//Yevgeniy Babkin CET - 3640 Lab #2
//Prof: J.Reyes Alamo
//date: 2/28/14
//first the random generator utility/package needs to be imported
import java.io.IOException;
import java.util.InputMismatchException;
import java.util.Random;
// secondly we need to import the Scanner in order to get input from user
import java.util.Scanner;
import javax.swing.JOptionPane;
// Then we start by creating a class
public class TemperatureSensor
{
public static int getWinterTemp(int winternum)
{
winternum = (int) (20 + Math.random() * ((40-20)+1));
return winternum;
}
public static int getSpringTemp(int springnum)
{
springnum = (int) (40 + Math.random() * ((60-40)+1));
return springnum;
}
public static int getSummerTemp(int summernum)
{
summernum = (int) (70 + Math.random() * ((90-70)+1));
return summernum;
}
public static int getFallTemp(int fallnum)
{
fallnum = (int) (40 + Math.random() * ((60-40)+1));
return fallnum;
}
//this refers to the method or (function) "simulate" which will set the Seasonal range and
//generate our random values according to users input
public static void simulate(int numofsim,int range, int end)
{
//"ran" will be used to generate random values
Random ran = new Random();
// here we create and initialize the variables we need for our statistics
int firstTemp;
int lastTemp;
int lowestTemp;
int highestTemp;
int sumTemp = 0;
int averageTemp = 0;
int temp;
// generating random values for (first temp) according to user selected choice
//as well as setting a random ref.value
firstTemp = ran.nextInt(end) + range;
//here we set our reference as the first temp generated
sumTemp = firstTemp;
highestTemp = firstTemp;
lowestTemp = firstTemp;
// long for loop with if statements
//to generate the user requested amount of values
//and properly assign them
for(int i=0; i<numofsim-2;i++)
{
// we use a method to generate random value "[name].nextInt(int n);"
// generate a bunch of random values and double check against ref.value "temp" values
temp = ran.nextInt(end)+range;
if(temp > highestTemp)
highestTemp = temp;
if(temp < lowestTemp)
lowestTemp = temp;
// add to sum
sumTemp += temp;
}
lastTemp = ran.nextInt(end) + range;
// add to sum
sumTemp += lastTemp;
if(lastTemp > highestTemp)
highestTemp = lastTemp;
if(lastTemp < lowestTemp)
lowestTemp = lastTemp;
//we get the sum and divide by the number of simulations the user requested to get the average
averageTemp = sumTemp/numofsim;
//Print out all the required statistics of the random values
System.out.println(
"Seasonal Statistics \n\n"
+
"1- First temperature generated: " +firstTemp +"\n" +
"2- Last temperature generated: " +lastTemp +"\n" +
"3- Lowest temperature generated: " +lowestTemp +"\n" +
"4- Highest temperature generated: " +highestTemp +"\n" +
"5- Total sum of all temperatures generated: " + sumTemp+"\n" +
"6- Average for the season: " + averageTemp+"\n" );
}
//-----------------------------------------
// program
//-----------------------------------------
static class TemperatureSensorStats
{}
public static void main (String [] args)
//public class TemperatureSensorStats
{
Scanner scan = new Scanner(System.in);
// declare and initialize the couple of variables that will be used in this scope
int choice=0;
int NumberOfSimulations = 0;
int x =0;
System.out.println("What season would you like to simulate???");
System.out.println("\nEnter 1 for Winter \nEnter 2 for Spring \nEnter 3 for Summer \nEnter 4 for Fall \nEnter 5 to Exit ");
try{
choice = scan.nextInt();
}
catch(Exception e){
System.out.println("That is not a valid selection please try again\n\n");
x=1;
}
while(choice!=5)
{
//System.out.println("How many temperature simulations would you like to generate?");
//NumberOfSimulations = scan.nextInt();
if (choice == 1)
{
System.out.println("How many temeprature simulations would you like to generate?");
try{
NumberOfSimulations = scan.nextInt();
}
catch(Exception e)
{
System.out.println("Invalid Entry Please enter an Integer value");
}
System.out.println("One specific Winter temperature simulation is: " +getWinterTemp(1) +"\n");
simulate(NumberOfSimulations,20,20);
}
else if(choice == 2)
{
System.out.println("How many temeprature simulations would you like to generate?");
NumberOfSimulations = scan.nextInt();
System.out.println("One specific Spring temperature simulation is: " +getSpringTemp(1) +"\n");
simulate(NumberOfSimulations,40,30);
}
else if(choice == 3)
{
System.out.println("How many temeprature simulations would you like to generate?");
NumberOfSimulations = scan.nextInt();
System.out.println("One specific Summer temperature simulation is: " +getSummerTemp(1) +"\n");
simulate(NumberOfSimulations,70,20);
}
else if(choice == 4)
{
System.out.println("How many temeprature simulations would you like to generate?");
NumberOfSimulations = scan.nextInt();
System.out.println("One specific Fall temperature simulation is: " +getFallTemp(1) +"\n");
simulate(NumberOfSimulations,40,20);
}
else
{
System.out.println("That is not a valid selection please try again\n\n");
}
//else if (choice ==5)
//{
// System.out.println("Thanks for using this Temperature Simulator\n\n" +"\n"+ "goodbye");
//}
//else if (choice < 1 )
//{
// System.out.println("That is not a valid selection please try again\n\n");
//}
//else if (choice >5)
//{
// System.out.println("That is not a valid selection please try again\n\n");
//}
//the 1st user menu which will repeat after the program reaches this stage
System.out.println("Enter 1 for Winter\nEnter 2 for Spring\nEnter 3 for Summer\nEnter 4 for Fall\nEnter 5 to Exit");
choice = scan.nextInt();
}
//Exit message if the above scan gets a 5
System.out.println("Thanks for using this Temperature Simulator\n\n" +"\n"+ "goodbye");
}
}
Screenshot:
