I have a list of words e.g : "Moon","Sun","Jupiter","Mars" they are all stored in an array, lets call it "planets"
String[] planets = new String[]{"Moon","Sun","Jupiter","Mars"}
How do i get the number of words that are stored in the array ?
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Actually `planets` is an array not a string. Can you rephrase? – Ray Toal Oct 13 '11 at 08:08
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String[] planets = array of string so the array length is your number of words. – FailedDev Oct 13 '11 at 08:09
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It's an array, you can get the length of the array like this: planets.length – Rob Oct 13 '11 at 08:10
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If you want to ask another question, use another Question. – Stephen C Oct 13 '11 at 08:14
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1The OP is not really wrong about the planets: the sun and moon were two of the original seven planets. – Ray Toal Oct 13 '11 at 08:14
3 Answers
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Those planets are not stored in one String. They are stored in a String array, so there's a String for each planet. If you want to get the number of planets in the planets array, just use: planets.length.
If you want to build a new array with the first two elements of the array, you can use:
String[] fewPlanets = new String[]{planets[0], planets[1]};
You might want to take a look at the Arrays Tutorial.
Take into account that there's a typo in the planets array declaration in the question. It should be:
String[] planets = new String[]{"Moon","Sun","Jupiter","Mars"}
If you really had the planets in one string, you could use String.split() with a separator to build an array with each of the planets, and use length to get the length of the array:
String planets = "Moon,Sun,Jupiter,Mars";
String[] planetsArray = planets.split(",");
int numberOfPlanets = planetsArray.length;
Xavi López
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The answer on the first question is: use planets.length to count the number of String's in the array.
JNDPNT
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