如何在 try 块内引发异常并终止程序

Question

My program takes input from the console as DD/MM/YYYY representing a date. I store all the data accordingly.
In this try catch block i am checking if variable "m" is a correct month, regarding the day and being between 1 and 12.

If "m" is not a number, the NumberFormatException is thrown.
I want to be able to throw the exceptions inside the if conditions and terminate the program displaying the thrown error and the message associated to it.

try
{
m = Integer.parseInt(data[1]);
if (m < 1 && m > 12)
    throw new NumberFormatException(m + " luna invalida");
else if ((m > 8 && m % 2 != 0 && d == 31) || (m < 8 && m % 2 == 0 && d == 31))
    throw new NumberFormatException(m + " " + d + " luna,zi invalida");
else
    luna = month[m];

} catch (NumberFormatException e)
{
    m = 0;
}

Answer 1

You should have the Integer.parseInt(data[1]) inside a try-catch block but all of the other code outside it. If you're using parseInt often, you could have the conversion inside a function.

m = 0;
try {
    m = Integer.parseInt(data[1]);
} catch (NumberFormatException e)
{
    e.printStackTrace();
}

// Rest of the code goes here

Answer 2

Inside the catch block. Type this

      System.exit(0).

Im using it in javafx gui.