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PLEASE HELP IN JAVA:
There are 2 input files, one contains days – one day (String) per line – and the other contains temperatures – again one (double) per line. You are to read in one day and one temp, and make a Temperature object. Do not try to separate month and date, just treat April 23 as a single String. You will need to create a Temperature class. You need only code the methods you need but make sure it has a compareTo (compares temps).
I have given you the main method. You will see that once you input all the data , create objects, and fill the array, you then print it out , and then find the hottest day in the year. Note that I just used a random number generator and it is as likely there were very hot days in December as very cold ones in July.
ask the user for a month, and then print the hottest day in that month. Note that you will need 2 different findLargest methods.
public static void main(String[] args) {
Temperature [] myArray = new Temperature[365];
readData(myArray);
printData (myArray);
Temperature big=findLargest(myArray);
System.out.println(“Hottest day was ” + big);
System.out.println(“Which month ?”);
Scanner s = new Scanner(System.in);
String month=s.nextLine();
big= findLargest(month, myArray);
System.out.println(“Hottest day in ” + month + ” was ” + big);
}
public static void readData(Temperature[] t)
{ Scanner scan1=null, scan2=null;
try{
scan1 = new Scanner(new BufferedInputStream(new FileInputStream(“days.txt”)));
//daya.txt contains the days
//temps.txt contains the temperature for each corresponding day
//so the first temperature (double) in temps.txt is the temperature for
//January 1, the second is for January 2 etc.
scan2 = new Scanner(new BufferedInputStream(new FileInputStream(“temps.txt”)));
} catch (FileNotFoundException e){
}
//Input data, create Temperature objects, and fill array
}
}
Expert Answer
Hey,
I am providing the code below. Feel free to comment if you don’t understand any part of it. Also don’t forget to give a thumbs up if this answer helped you.
// code starts here
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Scanner;
class Temperature implements Comparable<Temperature>{
private String day;
private double temperature;
public static void main(String[] args) {
Temperature[] myArray = new Temperature[365];
readData(myArray);
printData(myArray);
Temperature big = findLargest(myArray);
System.out.println("Hottest day was " + big);
System.out.println("Which month ?");
Scanner s = new Scanner(System.in);
String month = s.nextLine();
big = findLargest(month, myArray);
System.out.println("Hottest day in " + month + " was " + big);
}
private static void readData(Temperature[] t) {
Scanner scan1 = null, scan2 = null;
try {
scan1 = new Scanner(new BufferedInputStream(new FileInputStream("days.txt")));
scan2 = new Scanner(new BufferedInputStream(new FileInputStream("temps.txt")));
//daya.txt contains the days
//temps.txt contains the temperature for each corresponding day
//so the first temperature (double) in temps.txt is the temperature for
//January 1, the second is for January 2 etc.
//Input data, create Temperature objects, and fill array
for (int i = 0; i < 365; i++) {
t[i] = new Temperature();
t[i].day = scan1.nextLine();
t[i].temperature = Double.parseDouble(scan2.nextLine());
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
private static void printData(Temperature[] t){
for (int i = 0; i < 365; i++) {
System.out.println("Day : " + t[i].day + " Temperature : " + t[i].temperature);
}
}
private static Temperature findLargest(Temperature[] t){
Temperature largest = new Temperature();
for (int i = 0; i < 365; i++) {
if (t[i].temperature > largest.temperature){
largest = t[i];
}
}
return largest;
}
private static Temperature findLargest(String month, Temperature[] t){
Temperature largest = new Temperature();
for (int i = 0; i < 365; i++) {
if (t[i].day.split(" ")[0].equals(month)){
if (t[i].temperature > largest.temperature){
largest = t[i];
}
}
}
return largest;
}
@Override
public int compareTo(Temperature o) {
return Double.compare(this.temperature, o.temperature);
}
}
// code ends here
