How do I read an integer from the standard input in Java?

How to Read Integer Value from Standard Input in Java

Question:

What class in Java can you utilize to read an integer variable?

Answer:

In Java, you can rely on the java.util.Scanner class for this task.

Code Sample:

import java.util.Scanner;

//...

Scanner in = new Scanner(System.in);
int num = in.nextInt();

The Scanner class offers numerous features, including:

• Tokenizing input using regular expressions
• Exception handling for incorrect input types

Additional Resources:

Refer to the official Java API for java.util.Scanner documentation and examples. You can also find other helpful resources online, such as:

• How do I keep a scanner from throwing exceptions when the wrong type is entered?

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