import java.util.Scanner;
public class ReadData {
public static void main(String[] args) throws Exception {
// Create a File instance
java.io.File file = new java.io.File("scores.txt");
// Create a Scanner for the file
Scanner input = new Scanner(file);
// Read data from a file
while (input.hasNext()) {
String firstName = input.next();
String mi = input.next();
String lastName = input.next();
int score = input.nextInt();
System.out.println(
firstName + " " + mi + " " + lastName + " " + score);
}
// Close the file
input.close();
}
}
文件内容为： John T Smith 90 Erik K Jones 85
源代码如上，文件也放在同一个包里，但编译出错
Exception in thread "main" java.io.FileNotFoundException: scores.txt (系统找不到指定的文件。)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(Unknown Source)
at java.io.FileInputStream.(Unknown Source)
at java.util.Scanner.(Unknown Source)
at Exercise20.ReadDateScanner.main(ReadDateScanner.java:11)
