Comparar valor vacío de scanner de tipo int

Question

Compare a void value from scanner (type int)
https://code.sololearn.com/crCRg2BNHMS2/#java

Answer 1

nextInt only returns integers. If there isn't an integer available, it raises an exception. You have two choices: deal with the exception or test to see if an integer is available. This is your test:

if(!sc.hasNextInt()){
vacio();
}

else {
i = sc.nextInt();
System.out.print("Gracias"); //Thanks
}

Answer 2

Note: allocating a second scanner as your code attempts won't work. All of the input goes to the first one.