Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    /**
     * Strips null Strings from an array of Strings.
     * 
     * @param str
     *          Array to remove null strings from.
     * @return String array with null strings removed.
     */
    public static String[] stripNullStrings(String[] str) {
        if (str == null)
            return null;

        // propagate null strings to the end
        for (int i = str.length - 1; i > 0; i--) {
            if (str[i] != null && str[i - 1] == null) {
                str[i - 1] = str[i];
                str[i] = null;
            }
        }

        int numvalid = 0;
        for (int i = 0; i < str.length; i++)
            if (str[i] != null)
                numvalid = i + 1;

        if (numvalid == 0)
            return null;

        String tmp[] = new String[numvalid];
        System.arraycopy(str, 0, tmp, 0, numvalid);
        return tmp;
    }
}