Question

the following program is to read college name, a number of students and tuition from the file \colleges.txt\ and print the college name, the number of students and tuition. select the correct option to replace the missing code.

java
public class scannerstuff
{
public static void main(string args)
{
try
{
scanner input = new scanner(new file(\colleges.txt\));
while (input.hasnext())
{
string name = / missing code a /;
int numstu = / missing code b /;
int tuition = input.nextint();
input.nextline();

system.out.println(name + \ \ + numstu + \ \ + tuition);
}
}
catch(exception e)
{
system.out.println(e);
}
}
}

which is the correct option to replace the missing code?

option 2
option 3
option 1

Explanation:

🆕 New Concept Discovered: File Input Parsing with Scanner
Reading structured data sequentially from a file.

Step 1: Analyze the data types and order

The problem states that the program reads three values in order for each college from the file "colleges.txt":

1. College name (a text value, represented by String name)
2. Number of students (an integer value, represented by int numStu)
3. Tuition (an integer value, represented by int tuition)

Looking at the code inside the while loop:

• String name = / missing code A /
• int numStu = / missing code B /
• int tuition = input.nextInt();
• input.nextLine(); (used to consume the remaining newline character at the end of the line)

Step 2: Determine the correct Scanner methods

To read these values sequentially using the Scanner object named input:

• To read a String (the college name), we use input.next() (for a single word) or input.nextLine() (if it spans the line, but here the sequential reading pattern indicates standard token-based reading). Typically, input.next() is used for single-word tokens, or input.nextLine() if the name is on its own line. Looking at standard introductory Java patterns:
• missing code A should retrieve a string: input.next()
• To read an integer (the number of students):
• missing code B must retrieve an integer: input.nextInt()

Therefore, the missing pieces of code are:

• A: input.next();
• B: input.nextInt();

This matches Option 1 (which is selected in the image).

Answer:

Option 1