Java: convert List<String> to a join()d string

Javascript has Array.join()

js>["Bill","Bob","Steve"].join(" and ")

Bill and Bob and Steve

Is it good to have "Utils&rdquo; class in your software project?

Usually, during software development, there are all sorts of utility functions I need. Like zipped file, extract zip file, launching Web Browser, get scaled image...

wired output of the combination of $.each and jQuery.inArray function

My complete code:

jQuery.extend({



combinationCheck: function (p1position) {



    var Combination = [1, 2, 3, 4, 5, 6, 7, 8];

    Combination[0] = [1, 2, 3];

    Combination[1] = [4, 5, 6];

    Combination[2] = [7, 8, 9];

    Combination[3] = [1, 4, 7];

    Combination[4] = [2, 5, 8];

    Combination[5] = [4, 6, 8];

    Combination[6] = [1, 5, 9];

    Combination[7] = [3, 5, 7];





    $.each(p1position, function (index, value) {



        var num = value;



        if ($.inArray(String(value), Combination[1]) != '-1') {

            alert("there");

        }

        else {

            alert("not there");

        }



    });

});

wired output of the combination of $.each and jQuery.inArray function

My complete code:

jQuery.extend({



combinationCheck: function (p1position) {



    var Combination = [1, 2, 3, 4, 5, 6, 7, 8];

    Combination[0] = [1, 2, 3];

    Combination[1] = [4, 5, 6];

    Combination[2] = [7, 8, 9];

    Combination[3] = [1, 4, 7];

    Combination[4] = [2, 5, 8];

    Combination[5] = [4, 6, 8];

    Combination[6] = [1, 5, 9];

    Combination[7] = [3, 5, 7];





    $.each(p1position, function (index, value) {



        var num = value;



        if ($.inArray(String(value), Combination[1]) != '-1') {

            alert("there");

        }

        else {

            alert("not there");

        }



    });

});