Java Reference
In-Depth Information
Example:
do
{
System.out.print ("Enter a word:");
word = scan.next();
System.out.println (word);
}
while (!word.equals("quit"));
LISTING 6.2
//********************************************************************
// ReverseNumber.java Author: Lewis/Loftus
//
// Demonstrates the use of a do loop.
//********************************************************************
import java.util.Scanner;
public class ReverseNumber
{
//-----------------------------------------------------------------
// Reverses the digits of an integer mathematically.
//-----------------------------------------------------------------
public static void main (String[] args)
{
int number, lastDigit, reverse = 0;
Scanner scan = new Scanner (System.in);
System.out.print ("Enter a positive integer: ");
number = scan.nextInt();
do
{
lastDigit = number % 10;
reverse = (reverse * 10) + lastDigit;
number = number / 10;
}
while (number > 0);
System.out.println ("That number reversed is " + reverse);
}
}
 
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