小試身手小範例:

迴圈練習,把下列網址所提供的歌詞利用迴圈寫出,是首很有趣的童謠。

http://www.99-bottles-of-beer.net/lyrics.html

http://www.youtube.com/watch?v=3KnpZYkTWno

程式碼


public class test {
    public static void main(String[] args){
        int nBeerNum = 99;
        String sWord = "bottles";
        
        while( nBeerNum > 0)
        {
            System.out.print( nBeerNum + " " + sWord + " of beer on the wall, " );
            System.out.println( nBeerNum + " " + sWord + " of beer.");
            System.out.print( "Take one down and pass it around, ");
            nBeerNum--;
            if(nBeerNum == 1 )
            {
                sWord = "bottle";
            }
            else if( nBeerNum == 0 )
            {
                System.out.println( "no more bottles of beer on the wall. \n");
                System.out.print( "No more bottles of beer on the wall, ");
                System.out.println("no more bottles of beer. "); 
                System.out.print("Go to the store and buy some more, ");
                System.out.print("99 bottles of beer on the wall.");
                break;
            }
            System.out.println( nBeerNum + " " + sWord + " of beer on the wall. \n");
            
        }
    }
}

運行畫面(僅擷取部分)

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