日期:2014-05-20 浏览次数:21051 次
package class1;
public class Number {
/**
* @param args
*/
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
int[] number = new int[10];
int in, n;
java.io.File file1 = new java.io.File(
"D:\\Homeworks\\eclipse work place\\SuanFa\\src\\class1\\input.txt");
java.util.Scanner input = new java.util.Scanner(file1);
int page = input.nextInt();
for (int i = 1; i <= page; i++) {
n = i;
while (n >= 0) {
in = n % 10;
number[in]++;
n = n / 10;
}
}
java.io.File file2 = new java.io.File(
"D:\\Homeworks\\eclipse work place\\SuanFa\\src\\class1\\output.txt");
if (file2.exists()) {
System.out.println("File2 already exists");
System.exit(0);
}
java.io.PrintWriter output = new java.io.PrintWriter(file2);
for (int j = 0; j <= 9; j++) {
output.println("number " + j + " " + number[j]);
}
input.close();
output.close();
}
}