loopy

//save as loopy.java
public class loopy {
    final static String lineBreak = 
      System.getProperty("line.separator");
  
    public static void main(String[] args) {
       int counter = 5;
       
       //bottom-driven loop happens at least once:
       do
       {
           System.out.print(counter);
           counter--;
       }
       while (counter >= 1);
       System.out.print(lineBreak);
       
       //top-driven loops may never happen:
       while (counter <= 10)
       {
           System.out.print(counter);
           counter=counter+2;
       }
       System.out.print(lineBreak);

       
       for(counter=10; counter>=1; counter--)
       {
           System.out.print(counter);
       }
       System.out.print(lineBreak);
    }
}

guess number

//save as guess.java
import java.util.*;
public class guess {
  public static void main(String[] args) { 
    //SET UP THE VARIABLES FOR THE GAME:
    int guessesRemaining = 3;
    Random seed = new Random();
    int unknownNumber = seed.nextInt(10) + 1;
    Scanner myInput = new Scanner(System.in);
    int userGuess = 0;
    
    //GIVE THE USER 3 GUESSES TO GET THE NUMBER:
    while(guessesRemaining > 0)
       {
          userGuess = Integer.valueOf(myInput.nextLine());
          //IF I GET IT RIGHT:
          if (userGuess == unknownNumber)
          {
             System.out.println("you win");
             guessesRemaining = 0;
          }
          
          //IF IM LOWER:
          if (userGuess < unknownNumber) { System.out.println("higher"); }
          
          //IF IM HIGHER:
          if (userGuess > unknownNumber) { System.out.println("lower"); }
          
          guessesRemaining--;
       }
    
  }
}