arraylist - How to find the number of times a specific element occurs in an Array list in Java -

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I have computed several times to reveal the specific taste of crisps in a snack machine in the blues 

  Public int calculation (string taste) {int n = 0; Int nrFlavour = 0; While (n & lt; packets.size ()) {if (packets.get (n). Par (taste)) {nrFlavour ++; N ++; } Other n ++; } Return nrFlavour; }

I have a bibliography packet in which pack of crripes are objects, which have specific taste. However, when I said that "salt" is called three packets of flavor and I run this method, "salt" is input in the form of flavor, so it just gives 0 as if Square "salt" There are no pack offscaps objects with. Sorry, if that does not mean I'm new to Java and I can tell my problem best I can. :)

list holds packet PackOfCrisps Objects, and method takes a string parameter then statement packets.get (n). Comparing par value (tastes) a PackOfCrisps object to string , so the counting variable will never increase.

You need to compare the taste string in the specific area of ​​the object, something like this: 

  if (packets.get (N) .getFlavour (). Equal (taste)) {  
 Note one side, you can change the  while  loop with a simple   Remove the loop and the increase of  n .

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