Java List Print printList(List list0)

Description

Generates and prints the list that needs to be processed

License

Open Source License

Parameter

Parameter	Description
indoorP	a parameter

Return

String

Declaration

public static StringBuffer printList(List<?> list0) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.ArrayList;

import java.util.List;

public class Main {
    /**/*w  w w.  j a va 2 s  . c om*/
      * Generates and prints the list that needs to be processed
      * 
      * @param indoorP
      * @return String
      */
    public static StringBuffer printList(List<?> list0) {
        StringBuffer sb = new StringBuffer();

        if (list0.isEmpty()) {
            sb.append("    None");
            sb.append(System.lineSeparator());
            return sb;
        }

        List<String> list = new ArrayList<>();
        for (Object o : list0) {
            list.add(o.toString());
        }

        StringBuffer s = new StringBuffer();
        int SPACES = 22;
        //int row = 0;
        for (int i = 0; i < list.size(); i++) {
            int column = 0;

            String c = "";
            int num = 0;

            // Find out what column
            if ((i - 1) % 3 == 0)
                column = 1;
            else if ((i - 2) % 3 == 0)
                column = 2;

            // Look at how many whitespaces needed before printing each column
            if (column == 0) {
                c = list.get(i).toString();
                num = SPACES - c.length();

            }

            else if (column == 1 || column == 2) {
                c = list.get(i).toString();
                num = SPACES - list.get(i - 1).toString().length();

                // Handle the extra space before the parenthesis
                for (int j = 0; j < num; j++) {
                    s.append(" ");
                }
            }

            if (i + 1 < 10)
                s.append(" ");
            s.append("(");
            s.append(i + 1);
            s.append("). ");
            s.append(c);

            // if this is the last column
            if (column == 2 || i == list.size() - 1) {
                sb.append(s);
                sb.append(System.lineSeparator());
                s = new StringBuffer();
            }
        }

        return sb;
    }
}

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