Explain this code in paragraph style in detail

import java.util.ArrayList;

public class B {

public static void main(String[] args) {

String[][] lst = {

{"a", "b"}, {"c", "d", "e", "f"}

};

ArrayList newList = new ArrayList<>();

for(int i = 0; i < lst.length; i++) {

for(int j = 0; j < lst[i].length; j++) {

newList.add(lst[i][j]);

}

}

System.out.println(newList);

}

}