/in/Main.java:3: error: cannot find symbol
        List<String> strList = new ArrayList<String>();
        ^
  symbol:   class List
  location: class Main
/in/Main.java:3: error: cannot find symbol
        List<String> strList = new ArrayList<String>();
                                   ^
  symbol:   class ArrayList
  location: class Main
/in/Main.java:4: error: cannot find symbol
        List<String> strList2 = new ArrayList<String>();
        ^
  symbol:   class List
  location: class Main
/in/Main.java:4: error: cannot find symbol
        List<String> strList2 = new ArrayList<String>();
                                    ^
  symbol:   class ArrayList
  location: class Main
/in/Main.java:5: error: cannot find symbol
		List<String> strList3 = new ArrayList<String>();
		^
  symbol:   class List
  location: class Main
/in/Main.java:5: error: cannot find symbol
		List<String> strList3 = new ArrayList<String>();
		                            ^
  symbol:   class ArrayList
  location: class Main
6 errors