Java基础编程题目——文件名与邮箱验证
import java.util.Scanner;
public class Test {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
String fileName = scanner.next();
String email = scanner.next();
judge(fileName, email);
}
public static void judge(String fileName,String email){
int k = fileName.lastIndexOf(".java");
if (k > 0 && fileName.substring(k).equals(".java"))
System.out.println("Java文件名正确");
else
System.out.println("Java文件名无效");
int n = email.indexOf("@");
int s = email.lastIndexOf("@");
int i = email.indexOf(".");
if (n != -1 && i > n && n == s)
System.out.println("邮箱名正确");
else
System.out.println("邮箱名无效");
}
}