sample multi-arrays using java in console

arrays.java

  public static void main(String[] args) {

        /**
         * size limit in array
         */
        int user_count = 5;
        int user_filed_count = 4;

        /**
         * user_identification
         */
        int first_user = 0;
        int second_user = 1;
        int third_user = 2;
        int fourth_user = 3;
        int fifth_user = 4;

        /**
         * fields
         */
        int name = 0;
        int addr = 1;
        int contact = 2;
        int age = 3;

        /**
         * instantiaze/declare array with size
         */
        String users_multi[][] = new String[user_count][user_filed_count];

        /**
         * first user
         */
        users_multi[first_user][name] = "Edwar";
        users_multi[first_user][addr] = "Valley 1";
        users_multi[first_user][contact] = "09124556";
        users_multi[first_user][age] = "31";

        /**
         * second user
         */
        users_multi[second_user][name] = "Michael";
        users_multi[second_user][addr] = "Sheryl Mirra";
        users_multi[second_user][contact] = "55666";
        users_multi[second_user][age] = "19";

        /**
         * third user
         */
        users_multi[third_user][name] = "Arnel";
        users_multi[third_user][addr] = "Villaueva Vill";
        users_multi[third_user][contact] = "123434";
        users_multi[third_user][age] = "21";

        /**
         * fort user
         */
        users_multi[fourth_user][name] = "Kevin";
        users_multi[fourth_user][addr] = "Lorezo";
        users_multi[fourth_user][contact] = "55666";
        users_multi[fourth_user][age] = "23";

        /**
         * fifth user
         */
        users_multi[fifth_user][name] = "Josh";
        users_multi[fifth_user][addr] = "Grill Evaue";
        users_multi[fifth_user][contact] = "55666";
        users_multi[fifth_user][age] = "28";

        /**
         * print all user (without edit)
         */
        System.out.println("All users without edit");
        for (int i = 0; i < user_count; i++) {
            System.out.println("name: " + users_multi[i][name] + " Adrr: " + users_multi[i][addr] + " Contac: " + users_multi[i][contact] + " Age: " + users_multi[i][age]);

        }
//======================================================
        System.out.println("======================================================");
        /**
         * SEARCH
         */
        String search = "Lorezo";

        String[] single_user = new String[user_filed_count];

        for (int i = 0; i < user_count; i++) {
            for (int j = 0; j < user_filed_count; j++) {
                if (search == users_multi[i][j]) {
                    single_user = users_multi[i];
                    break;
                }
            }
        }
        System.out.println("result from search of key (" + search + ")");
        System.out.println("name: " + single_user[name] + " Adrr: " + single_user[addr] + " Contac: " + single_user[contact] + " Age: " + single_user[age]);

//======================================================
        System.out.println("======================================================");
        /**
         * EDIT
         */
        String seeacr_for_edit = "Josh";
        for (int i = 0; i < user_count; i++) {
            for (int j = 0; j < user_filed_count; j++) {
                if (seeacr_for_edit == users_multi[i][j]) {
                    users_multi[i][name] = "new name of " + seeacr_for_edit + " edited";
                    users_multi[i][addr] = "new addrrrr";
                    users_multi[i][contact] = "new contac";
                    users_multi[i][age] = "new age";
                    break;
                }
            }
        }

        /**
         * print all user (WITH edited)
         */
        System.out.println("All users WITH edited (" + seeacr_for_edit + ")");
        for (int i = 0; i < user_count; i++) {
            System.out.println("name: " + users_multi[i][name] + " Adrr: " + users_multi[i][addr] + " Contac: " + users_multi[i][contact] + " Age: " + users_multi[i][age]);

        }

    }