Assignment #76 and Seventy-Third Program
Code
/// Name: Georgi Atanasov
/// Period: 5
/// Program Name: Collatz Sequence
/// File Name: Collatz.java
/// Date Finished: 3/1/2016
import java.util.Scanner;
public class Collatz
{
public static void main(String[] args)
{
Scanner keyboard = new Scanner(System.in);
int n;
int x = 0;
do
{
System.out.print("Starting number: ");
n = keyboard.nextInt();
if (n <= 1)
System.out.println("Starting number must be greater than 1.");
} while (n <= 1);
while ( n != 1 )
{
if ( n % 2 == 0 )
{
n = n/2;
}
else
{
n = 3*n + 1;
}
x++;
System.out.print(n + " ");
}
System.out.println();
System.out.println("Terminated after " + x + " steps.");
}
}
Picture of the output
