Related questions
JAVA PROGRAM
Scanner scanner = new Scanner(System.in);
// Prompt the user for the filename
System.out.print("Enter the filename: ");
String filename = scanner.nextLine();
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class ArrayOperations {
public static void main(String[] args) {
if (args.length != 1) {
System.err.println("Usage: java ArrayOperations <filename>");
System.exit(1); // Exit with an error code
}
String fileName = args[0];
double[] data = readDataFromFile(fileName);
if (data != null) {
System.out.printf("Total: %.3f%n", getTotal(data));
System.out.printf("Average: %.3f%n", getAverage(data));
System.out.printf("Highest: %.3f%n", getHighest(data));
System.out.printf("Lowest: %.3f%n", getLowest(data));
}
}
public static double[] readDataFromFile(String fileName) {
List<Double> dataList = new ArrayList<>();
try (BufferedReader br = new BufferedReader(new FileReader(fileName))) {
String line;
while ((line = br.readLine()) != null) {
line = line.trim();
if (!line.isEmpty()) {
dataList.add(Double.parseDouble(line));
}
}
} catch (IOException e) {
System.err.println("File: " + fileName + " does not exist.");
return null;
} catch (NumberFormatException e) {
System.err.println("Invalid data format in the file: " + e.getMessage());
return null;
}
double[] data = new double[dataList.size()];
for (int i = 0; i < dataList.size(); i++) {
data[i] = dataList.get(i);
}
return data;
}
public static double getTotal(double[] arr) {
double total = 0;
for (double num : arr) {
total += num;
}
return total;
}
public static double getAverage(double[] arr) {
if (arr.length == 0) {
return 0;
}
return getTotal(arr) / arr.length;
}
public static double getHighest(double[] arr) {
double highest = Double.NEGATIVE_INFINITY;
for (double num : arr) {
if (num > highest) {
highest = num;
}
}
return highest;
}
public static double getLowest(double[] arr) {
double lowest = Double.POSITIVE_INFINITY;
for (double num : arr) {
if (num < lowest) {
lowest = num;
}
}
return lowest;
}
}
input1.txt
-283.760
-456.167
19.815
-322.301
344.949
-850.533
-672.360
-188.767
646.462
-118.775
808.613
-746.865
-370.432
219.607
-166.298
-508.636
-989.128
-205.020
-928.165
-180.699
300.753
316.036
709.371
-886.860
-585.388
-554.302
-394.801
-970.233
905.941
787.854
-181.240
74.665
802.453
-951.292
-510.656
-203.999
-276.199
-350.575
398.501
-519.799
469.199
592.120
713.424
155.967
585.481
-780.846
387.700
457.806
560.933
-343.916
486.806
-43.184
237.494
191.488
309.275
-64.415
-206.333
-377.696
-409.553
-734.282
-777.221
-318.800
-695.745
40.631
-384.036
-937.134
-380.501
-77.083
756.524
-720.959
-579.412
-215.301
542.097
-402.541
468.721
151.050
573.296
-342.210
758.038
200.691
882.294
8.042
-87.760
634.811
-777.953
767.795
570.716
594.012
596.648
900.010
-370.754
985.007
785.562
-838.952
-71.182
72.845
-500.759
698.946
527.167
1.082
Test Case 1
Average: -18.131\n
Highest: 985.007\n
Lowest: -989.128\n
Test Case 2
Average: -165.684\n
Highest: 9,994.439\n
Lowest: -9,988.269\n
Test Case 3
Test Case 4
Step by stepSolved in 4 steps with 1 images
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