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Java program to read numbers from users
The java.util.Scanner class is a simple text scanner which can parse primitive types and strings using regular expressions.
- 1. A Scanner breaks its input into tokens using a delimiter pattern, which by default matches whitespace.
- 2. A scanning operation may block waiting for input.
- 3. A Scanner is not safe for multi-threaded use without external synchronization.
The nextInt() method of the Scanner class is used to read an integer value from the source.
Example
import java.util.Scanner;
public class ReadingNumbersFromUser {
public static void main(String args[]){
Scanner sc = new Scanner(System.in);
System.out.println("Enter a number ::");
int num = sc.nextInt();
System.out.println("Number entered is :: "+num);
}
}Output
Enter a number :: 5564 Number entered is :: 5564
Updated on: 13-Mar-2020
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