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In short, I have this code, and ... specific element of the array using a condition and lambda. The code would be something like this: Preset[] presets = presetDALC.getList(); Preset preset = Arrays.stream(presets).select(x -> x.getName().equals("MyString")); But obviously this does not work. In C# would be something similar but in Java, how do I do this? ... Optional optional = Arrays.stream(presets) .filter(x -> "MyString".equals(x.getName())) .findFirst(); // Check ... More on stackoverflow.com

ArrayList.indexOf(Object o) will always return the index of the first occurrence of the given object, so what you observe is happening by design; to get the indices of the others, you would have to remove the item from the list once you find it so that when you call indexOf again, the next occurrence is seen. Alternatively, you could scan through the list and compare elements directly instead of using indexOf. That way, you wouldn't have to modify the list at all, since you'd simply be looking at each item and comparing with a reference value. More on reddit.com

A two dimensional array is just an array of arrays, so to get the last item in the last row, you can get the last array from the first dimension, and get that array's last item: int[] lastRow = array[array.length - 1]; int lastItem = lastRow[lastRow.length - 1]; Or you can get the last row's length, and access the last row & column from the 2D array: int lastRowLength = array[array.length - 1].length; int lastItem = array[array.length - 1][lastRowLength - 1]; or more concisely: int lastItem = array[array.length - 1][array[array.length-1].length - 1]; Edit: typo fixed. thanks to u/HellloWorld More on reddit.com