テキストまたは整数をスキップする必要があります。数値 (int/double) と文字列を含む .dat ファイルを読み取ります。また、ファイル内の単語数の最大、最小、合計、およびカウントを計算して出力します。平均はどうするの？ありがとうございました！！
import java.io.*;
import java.util.*;
public class ProcessFile {
public static void main(String [] args) throws FileNotFoundException {
Scanner console = new Scanner(System.in);
System.out.print("Enter file name: ");
String n = console.next();
File f = new File(n);
while(!f.exists()){
System.out.print("Doesn't exist. Enter a valid filename: ");
n = console.next();
f = new File(n);
}
Scanner input = new Scanner(f);
int minInt = Integer.MAX_VALUE;
int maxInt = Integer.MIN_VALUE;
int countInt;
int averageInt =
double minDouble = Double.MIN_VALUE;
double maxDouble = Double.MAX_VALUE;
double countDouble;
double averageDouble = //sum / countDouble
while(input.hasNext()){
if (input.hasNextInt()){
int next = input.nextInt();
maxInt = Math.max(next, maxInt);
minInt = Math.min(next, minInt);
countIntC++;
averageInt =
System.out.println("The results for the integers in the file :");
System.out.printf(" Max = %d\n", maxInt);
System.out.printf(" Min = %d\n", minInt);
System.out.printf(" Count = %d\n", countInt);
System.out.printf(" averageInt = %d\n", averageInt);
} else if (input.hasNextDouble()) { //can I read it as a double
double = next2 = input.nextDouble();
maxDouble = Math.max(next2, maxDouble);
minDouble = Math.min(next2, minDouble);
countDouble++;
averageDouble =
System.out.println("The results for the integers in the file:");
System.out.printf(" Max = %f\n", maxDouble);
System.out.printf(" Min = %f\n", minDouble);
System.out.printf(" Count = %f\n", countDouble);
System.out.printf(" averageInt = %f\n", averageDouble);
} else { //it is String
}
}
}
}