其实就是判断是否有"@"和"."
编写程序：
public class EmailDemo{
public static void main(String[]args){
String email="gsanshaoye@";
System.out.println(email+":"+(validate(email)?"Email地址合法":"Email地址不合法"));
}
public static boolean validate(String email){
boolean flag=true;
if(email.indexOf("@")==-1||email.indexOf(".")==-1){
flag=false;
}
if(flag){
if(email.indexOf("@")>email.indexOf("."))
flag=false;
}
return flag;
}
}
