Beersong
if (beerNum == 1){
word = "bottle"; // singular
}
so even if only one bottle of beer is remaining "1 bottles of beer on the wall" will be printed...'bottles' wont be replaced by 'bottle'
If it DOESN'T work, then come back, post all your code, tell us what happened, and what you expected to happen.
There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
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the output is:
2 bottles of beer on the wall
2 bottles of beer
Take one down.
Pass it around
1 bottle of beer on the wall
1 bottle of beer
Take one down.
Pass it around
No more bottles of beer on the wall
what you have to understand here is the iteration, that I think you are understanding, it goes in function of the "index" of the iteration, 'beerNum' in this case.
Try to change the value of 'beerNum', or the index you use, when you don't understand the output.
If you want to reach the stars, then divide and conquer
It showed all the results successfully.
Initially, beerNum is assigned the value 99.
Then a condition is set in the while loop when beerNum is greater than 0, to evaluate if loop when beerNum is equal to 1.
It prints some text in the mid.
Decrements the value 99 stored in the beerNum by 1.
Again checks whether beerNum is greater than 0 in the if condition, prints some text when true, when false it prints some other text.
That was it!
Carlo Lopez wrote:I have executed your program, but changing the number of bottles to 2, and changing some of the code to make it more explicit:
the output is:
2 bottles of beer on the wall
2 bottles of beer
Take one down.
Pass it around
1 bottle of beer on the wall
1 bottle of beer
Take one down.
Pass it around
No more bottles of beer on the wall
what you have to understand here is the iteration, that I think you are understanding, it goes in function of the "index" of the iteration, 'beerNum' in this case.
Try to change the value of 'beerNum', or the index you use, when you don't understand the output.
THANKS FOR THE INFO, IT WORKED
alex lesta wrote:THANK YOU
Carlo Lopez wrote:I have executed your program, but changing the number of bottles to 2, and changing some of the code to make it more explicit:
the output is:
2 bottles of beer on the wall
2 bottles of beer
Take one down.
Pass it around
1 bottle of beer on the wall
1 bottle of beer
Take one down.
Pass it around
No more bottles of beer on the wall
what you have to understand here is the iteration, that I think you are understanding, it goes in function of the "index" of the iteration, 'beerNum' in this case.
Try to change the value of 'beerNum', or the index you use, when you don't understand the output.
THANKS FOR THE INFO, IT WORKED
alex lesta wrote:
Carlo Lopez wrote:Hey carlos, I am reading to books on Java. Head First java and Just java 2. In your opinion are these books good enough for me to learn java.
Thank you!
I would suggest "Core Java, Volume 1" from Horstman, excellent book.
If you want to reach the stars, then divide and conquer
Carlo Lopez wrote:[
I would suggest "Core Java, Volume 1" from Horstman, excellent book.
alex lesta : i strongly recommend that you read the preface of the above book.
Its not for "beginner programmers" or those "beginning java". I am going to read that book a little later, it was not my first book.The HFJ is ok. Other books you can consider are "how to program" by deitel and "absolute java" by savitch.
hth.
good luck.
SCJP 6. Learning more now.
public class BeerSong{
public static void main (String[] args){
int beerNum = 99;
String word = "bottles";
while (beerNum >= 1){
if (beerNum == 1){
word = "bottle"; // singular
}
System.out.println( beerNum + " " + word + " of beer on the wall" );
System.out.println( beerNum + " " + word + " of beer" );
System.out.println("Take one down");
System.out.println("Pass it around");
beerNum = beerNum - 1;
if (beerNum > 0){
System.out.println(beerNum + " " + word + " of beer on the wall");
}else {
System.out.println("No More bottles of beer on the wall");
}
}
}
}
