[首先，我试图获取我编写的用于计算和输出从数据文件中读取的数组的最小值，最大值和平均值的代码，但是它完全跳过了这些方法。
最后，程序应该跳过这三行345，1230 / 8，0025 / 35，5900，因为第二个数字是不正确的磅数百分比，产生的磅数其余的一分为二。我正在努力让程序捕获以余数结尾的任何结果，并跳过该行以读取下一行。您将看到我在尝试中注释掉了if语句。对于如何解决这个问题，有任何的建议吗？
------Data File-----
233, 7500
23, 5000
56, 3125
79, 0625
45, 8125
76, 3750
76, 6250
15, 4375
56, 3750
345, 1230
34, 4375
654, 6875
8, 0025
5, 3125
987, 2500
56, 8125
24, 2500
92, 0000
35, 3125
32, 0625
35, 5900
package projectone;
import java.io.*;
import java.lang.*;
import java.util.*;
import javax.swing.*;
import javax.swing.filechooser.FileSystemView;
public class ProjectOne{
public static class Weight { // Start Weight class
private int pound;
private int ounce;
Scanner down = new Scanner(System.in);
private Weight(int pound, int ounce) { //Start Weight Constructor
this.pound = pound;
this.ounce = ounce;
this.normalize();
} // End Weight constructor
public boolean lessThan(Weight other) { //Start lessThan method
other.normalize();
if (this.pound > other.pound) { // Start If
return false;
} // End if
return !((this.pound == other.pound) && (this.ounce > other.ounce));
} //End lessThan method
public void addTo(Weight other) { // Start addTo
this.pound += other.pound;
this.ounce += other.ounce;
this.normalize();
} // End addTo
public void divide(int divisor) { // Start divide
this.pound = this.pound / divisor;
this.ounce = this.ounce / divisor;
//if (ounce = float) {
// down.nextLine();
// }
this.normalize();
}// End divide
@Override
public String toString() { // Start toString
return String.format("%d lbs, %d oz" , pound , ounce);
}
private double toOunces() { // Start toOunces
return pound * 16 + ounce;
} // End toOunces
private void normalize() { // Start normalize
while (ounce >= 16) { // Start while loop
ounce = ounce - 16;
} // End while loop
} // End nomalize
private static Weight findMinimum(Weight[] weightArray, Integer weights) { // Start findMin
Weight minWeight = weightArray[0];
for (int i = 0; i < weights; i++) { // Start for loop
if (minWeight.lessThan(weightArray[i]) == false) { // Start If
minWeight = weightArray[i];
} // End if
} // End for
return minWeight;
} // End findMin
private static Weight findMaximum(Weight[] weightArray, Integer weights) { // Start findMax
Weight maxWeight = weightArray[0];
for (int i = 0; i < weights; i++) { // Start for
if (maxWeight.lessThan(weightArray[i])) { //Start if
maxWeight = weightArray[i];
} //end if
}// end for
return maxWeight;
} //end findMax
private static Weight findAverage(Weight[] weightArray, Integer weights) { // Start findAverage
Weight totalWeight = weightArray[0];
for (int i = 0; i < weights; i++) { // Start for
totalWeight.addTo(weightArray[i]);
} // End for
totalWeight.divide(weights);
return totalWeight;
} // End findAverage
}
public static void main(String[] args) { // Start Main
System.out.println(findAverage(weightArray, Integer weights));
System.out.println(findMaximum());
System.out.println(findMinimum());
Weight[] weightArray;
JFileChooser jfc = new JFileChooser(FileSystemView.getFileSystemView().getHomeDirectory());
int returnValue = jfc.showOpenDialog(null);
File selectedFile;
if (returnValue == JFileChooser.APPROVE_OPTION) {
selectedFile = jfc.getSelectedFile();
}
else {
System.out.println("Process Canceled!");
return;
}
int lines = 0;
Scanner sc;
try {
sc = new Scanner(selectedFile);
}
catch (FileNotFoundException ex) {
System.out.println("File Not Found!");
return;
}
String ln;
// Count number of data lines in data file.
while (sc.hasNextLine()) {
ln = sc.nextLine().trim();
if (ln.equals("")) {
continue;
}
lines++;
}
sc.close();
// Initialize the weightArray to proper length
weightArray = new Weight[lines];
lines = 0; // Reset lines to 0 for the re-read.
// Re-Read data file to acquire data.
try (Scanner scanner = new Scanner(selectedFile)) {
String dataLine = "";
while (scanner.hasNextLine()) {
// Read file line and trim leading/trailing whitespaces.
dataLine = scanner.nextLine().trim();
// Skip Blank Lines
if (dataLine.equals("")) {
continue;
}
lines++; // Actual Data Line Counter.
if (lines >= 25) {
System.out.println("The number of lines has exceeded 25 lines maximum!");
System.exit(0);
}//End if
else {
String[] arrOfStr = dataLine.split("\\s{0,},\\s{0,}");
weightArray[lines - 1] = new Weight(Integer.parseInt(arrOfStr[0]),
Integer.parseInt(arrOfStr[1]));
}
}
}
catch (FileNotFoundException e) { // Start catch
}
// Display the weightArray
for (int i = 0; i < weightArray.length; i++) {
if (weightArray[i] != null) {
System.out.println(weightArray[i].toString());
}
}
}
}
根据您的最新帖子，我可以指出您犯的一些错误。
错误在您的主要方法的三行上：
System.out.println(findAverage(weightArray, Integer weights));
System.out.println(findMaximum());
System.out.println(findMinimum());
调用这三个函数的正确方法是
System.out.println(Weight.findMinimum());
要将数据传递给方法，我们不需要数据类型。因此，请删除Integer。
System.out.println(Weight.findAverage(weightArray, Integer weights));
最后，您要传递给这三个函数的两个参数是什么？尚不清楚您要实现什么。