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Add countItems algorithm using recursion #323

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Add countItems algorithm using recursion #323

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14 changes: 14 additions & 0 deletions 03_recursion/java/05_countItem/src
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Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
public class CountItem {

public static int countItems(int[] list, int startIndex){
if (startIndex == list.length) {
return 0; // Base case: no items
}
return 1 + countItems(list, startIndex+1);
}

public static void main(String[] args) {
int[] list = new int[]{2, 4, 6, 8, 10, 12};
System.out.println(countItems(list, 0));
}
}