prevnextnum.java

import java.util.Scanner;

public class prevnextnum {

 public static void main(String[] args) {
 Scanner scanner = new Scanner(System.in);
 System.out.print("Enter a number: ");
 int number = scanner.nextInt();

 int previousNumber = number - 1;
 int nextNumber = number + 1;

 System.out.println("Previous number: " + previousNumber);
 System.out.println("Current number: " + number);
 System.out.println("Next number: " + nextNumber);
 }
}