How do I save common words from two arrays into a third array?

I am trying to save all common words from arr1 and arr2 and then store to arr3.

String[] arr1 = {"pEace", "happiness", "Gives", "So", "aaa"};  String[] arr2 = {"pEace", "HappiNess", "joy", "give", "AAA", "enjoy", "learN"};    int k = 0;  String[] arr3 = new String[0];  for (int i = 0; i < arr1.length; i++) {      for (int j = 0; j < arr2.length; j++) {          if (arr1[i].equalsIgnoreCase(arr2[j])) {              System.out.println(arr1[i]);              arr3[k] = arr1[i];              k++;          }      }  }  System.out.println(Arrays.toString(arr3));  

https://stackoverflow.com/questions/66914316/how-do-i-save-common-words-from-two-arrays-into-a-third-array April 02, 2021 at 12:08PM