Final answer:
The code provided demonstrates how to convert a string to an integer in Java using Integer.parseInt and how to handle possible NumberFormatException by assigning -1 to the integer variable if the parsing fails.
Step-by-step explanation:
The student is asking how to use the Integer.parseInt method in Java to convert a string to an integer and handle a NumberFormatException. Here's the code that meets these requirements:
try {
i = Integer.parseInt(s);
} catch (NumberFormatException e) {
i = -1;
}
This code attempts to parse the string s into an integer. If the string does not contain a parsable integer, a NumberFormatException is caught and variable i is assigned the value of -1.