Java - contains check all items in an arraylist meet a condition

Question

myArrayList = {"Method and apparatus","system and method for the same","drive-modulation method"," METHOD FOR ORTHOGONAL"}

How can i check if all the Items (myArrayList) contains a word "method" (irrespective of case)

boolean method return true if all the items contain the word, else its false

Answer 1

In Java8, you can use stream with matching to simplify your code.

 return arrayList.stream().allMatch(t -> t.toLowerCase().contains("test"));

Answer 2

Iterate and use contains. Remove the or conditions if you want case specific.

   public static boolean isListContainMethod(List<String> arraylist) {
    for (String str : arraylist) {
        if (!str.toLowerCase().contains("method")) {
            return false;
        }
    }
    return true;
}