99 bottles of beer

99 bottles of beer is a programming puzzle. It lays out a problem which Rosetta Code users are encouraged to solve, using languages and techniques they know. Multiple approaches are not discouraged, so long as the puzzle guidelines are followed. For other Puzzles, see Category:Puzzles.

In this puzzle, print out the entire "99 bottles of beer on the wall" song. For those who do not know the song, the lyrics follow this form:

X bottles of beer on the wall
X bottles of beer
Take one down, pass it around
X-1 bottles of beer on the wall

X-1 bottles of beer on the wall
...
Take one down, pass it around
0 bottles of beer on the wall

Where X and X-1 are replaced by numbers of course. Grammatical support for "1 bottle of beer" is optional. As with any puzzle, try to do it in as creative/concise/comical a way as possible (simple, obvious solutions allowed, too).

See also: http://99-bottles-of-beer.net/

BASIC

Works with: QuickBasic version 4.5

<qbasic>FOR x = 99 TO 1 STEP -1

 PRINT x; "bottles of beer on the wall"
 PRINT x; "bottles of beer"
 PRINT "Take one down, pass it around"
 PRINT x-1; "bottles of beer on the wall"
 PRINT

NEXT x</qbasic>

C++

<c>#include<stdio> using namespace std; int main(int argc, char* argv[]){

  for(int x = 99;x>=1; --x){
    cout<<x<<"bottles of beer on the wall\n"<<x<<"bottles of beer\n"<<"Take one down, pass it around\n"<<x-1<<"bottles of beer on the wall\n\n";
  }

}</c>

Java

Console

<java>public class Beer{

  public static void main(String[] args){
     for(int x = 99;x>=1; --x)
        System.out.println(x+"bottles of beer on the wall\n"+x+"bottles of beer\n"+"Take one down, pass it around\n"+(x-1)+"bottles of beer on the wall\n");
  }

}</java>

GUI

Works with: Swing

This version requires user interaction. The first two lines are shown in a text area on a window. The third line is shown on a button which you need to click to see the fourth line in a message box. The numbers update and the process repeats until "0 bottles of beer on the wall" is shown in a message box, when the program ends. <java>import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JTextArea; public class Beer extends JFrame implements ActionListener{ private int x; private JButton take; private JTextArea text; public static void main(String[] args){ new Beer(); }

public Beer(){ x= 99; take= new JButton("Take one down, pass it around"); text= new JTextArea(4,30); text.setText(x + " bottles of beer on the wall\n" + x + " bottles of beer"); take.addActionListener(this); setLayout(new BorderLayout()); add(text, BorderLayout.CENTER); add(take, BorderLayout.SOUTH); pack(); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); }

public void actionPerformed(ActionEvent arg0){ if(arg0.getSource() == take){ --x; JOptionPane.showMessageDialog(null, x + " bottles of beer on the wall"); text.setText(x + " bottles of beer on the wall\n" + x + " bottles of beer"); } if(x == 0){ dispose(); } } }</java>