/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
int pos = email.indexOf("@"); // Se retornar -1 é um email invalido
if (pos != -1) {
String provedor
= email.
substring(pos
+ 1);
} else {
System.
err.
println("Email inválido"); }
}
}
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