Description:
The program in this lab has the same function as the one in last lab, but this one uses inheritance.
I first created Sensor.java file. This file is used to generate integer random number.
I then created TemperatureSensor.java and HumiditySensor.java. These two files are basically the same. Both of them inherit Sensor.java, but the meaning of the data generated form each file is different; one is temperature, and the other one is humidity.
The last file I created is SensorsStatsApp.java. This file is almost the same as last lab. However, I have to use previous two file to handle the data generate.
Code:
package Lab3;
//Written by Luis Hu
public class Sensor {
private static int reading;
//return reading
public static int getReading() {
return reading;
}
//generate range between l and u
public static void setReading(int l, int u) {
int reading = (int) (Math.random()*(u-l)+l);
Sensor.reading = reading;
}
public static void setReading( int u) {
setReading(0, u);
}
public static void setReading() {
setReading(0,100);
}
}
package Lab3;
public class TemperatureSensor extends Sensor {
public static int getSpring() {
setReading(40, 70);
return getReading();
}
public static int getSummer() {
setReading(70, 90);
return getReading();
}
public static int getFall() {
setReading(40, 60);
return getReading();
}
public static int getWinter() {
setReading(20, 40);
return getReading();
}
}
package Lab3;
//Written by Luis Hu
public class HumiditySensor extends Sensor {
public static int getHumidity() {
setReading();
return getReading();
}
public static int getLowHumidity() {
setReading(50);
return getReading();
}
public static int getHighHumidity() {
setReading(50, 100);
return getReading();
}
}
package Lab3;
import java.util.Scanner;
public class SensorsStatsApp {
private static Scanner scanner = new Scanner(System.in);
public static void main(String[] args) {
int a;
int simulateSeason;
int simulateHumidity;
int roll = 0;
int programLooping = 0;
outer: while (programLooping == 0) {
//Get input and set up season selection
System.out
.println("Selece a season to simulate:\n(1) winter \n(2) spring \n(3) summer \n(4) fall \n(5) random \n(6) exit");
String userSelectSeason = scanner.nextLine();
switch (userSelectSeason) {
case ("1"):
case ("2"):
case ("3"):
case ("4"):
simulateSeason = Integer.parseInt(userSelectSeason);
break;
case ("5"):
simulateSeason = (int) (Math.random() * 3 + 1);
break;
case ("6"):
programLooping = 1;
return;
default:
System.out.print("invalid input\n");
continue outer;
}
//Get input and set up humidity selection
System.out
.println("Select humidity simulate range \n(1) full range \n(2) low \n(3) high \n(4) random \n(5) exit");
String userSelectHumidity = scanner.nextLine();
switch (userSelectHumidity) {
case ("1"):
case ("2"):
case ("3"):
simulateHumidity = Integer.parseInt(userSelectHumidity);
break;
case ("4"):
simulateHumidity = (int) (Math.random() * 3 + 1);
break;
case ("5"):
programLooping = 1;
return;
default:
System.out.print("invalid input\n");
continue outer;
}
// promote user to set up the number of trial
System.out.println("Enter number of trials you want:");
String StInTrial = scanner.nextLine();
int intInTrial1;
try { // check if input is valid
intInTrial1 = Integer.parseInt(StInTrial);
} catch (NumberFormatException ex) {
System.out.println("invalid input\n");
continue outer;
}
//display selection
System.out.print("Selected season: "
+ getSeason(Integer.parseInt(userSelectSeason)));
if (Integer.parseInt(userSelectSeason) == 5) {
System.out.println(" (" + getSeason(simulateSeason) + ")");
} else
System.out.println("");
System.out.print("Selected humidity: "
+ getHumidity(Integer.parseInt(userSelectHumidity)));
if (Integer.parseInt(userSelectHumidity) == 4) {
System.out.println(" (" + getHumidity(simulateHumidity) + ")");
} else
System.out.println("");
System.out.println("For " + intInTrial1 + " trial(s)");
//processing Temperature
System.out.println("==Temperature Data==");
int highTemp = 0;
int lowTemp = 100;
int totalTemp = 0;
for (int Counter = 0; Counter < intInTrial1; Counter++) {
switch(simulateSeason){
case 1:
roll = TemperatureSensor.getWinter();
break;
case 2:
roll = TemperatureSensor.getSpring();
break;
case 3:
roll = TemperatureSensor.getSummer();
break;
case 4:
roll = TemperatureSensor.getFall();
break;
}
if (Counter == 0) System.out.println("The first temperature generated is :" + roll);
if (Counter == intInTrial1) System.out.println("The last temperature generated is :" + roll);
if (highTemproll) lowTemp = roll;
totalTemp += roll;
}
// print out the rest of collected data .
System.out.println("The highest temperature generated is :"
+ highTemp);
System.out.println("The lowest temperature generated is :"
+ lowTemp);
System.out.println("The sum of generated temperature is :"
+ totalTemp);
System.out.println("The avarage of generated temperature is :"
+ totalTemp / intInTrial1);
// processing Humidity
System.out.println("==Humidity Data==");
int highHumidity = 0;
int lowHumidity = 100;
int totalHumidity = 0;
for (int Counter = 0; Counter < intInTrial1; Counter++) {
switch(simulateHumidity){
case 1:
roll = HumiditySensor.getHumidity();
break;
case 2:
roll = HumiditySensor.getLowHumidity();
break;
case 3:
roll = HumiditySensor.getHighHumidity();
break;
}
if (Counter == 0) System.out.println("The first humidity reading generated is :" + roll);
if (Counter == intInTrial1) System.out.println("The last humidity reading generated is :" + roll);
if (highHumidityroll) lowHumidity = roll;
totalHumidity += roll;
}
// print out the rest of collected data .
System.out.println("The highest humidity reading generated is :"
+ highHumidity);
System.out.println("The lowest humidity reading generated is :"
+ lowHumidity);
System.out.println("The sum of generated humidity reading is :"
+ totalHumidity);
System.out.println("The avarage of generated humidity reading is :"
+ totalHumidity / intInTrial1);
System.out.println("==End of Simulating==");
}
}
public static String getSeason(int a) {
String b = "";
switch (a) {
case 1:
b = "winter";
break;
case 2:
b = "spring";
break;
case 3:
b = "summer";
break;
case 4:
b = "fall";
break;
case 5:
b = "random";
break;
}
return b;
}
public static String getHumidity(int a) {
String b = "";
switch (a) {
case 1:
b = "full range";
break;
case 2:
b = "low";
break;
case 3:
b = "high";
break;
case 4:
b = "random";
break;
}
return b;
}
}
Screenshot:
