Module dev.netcode.util
Package dev.netcode.util

Class StringUtils

java.lang.Object
dev.netcode.util.StringUtils
public class StringUtils extends Object
This class contains functions to generate, manipulate or use Strings

  • Constructor Details

    • StringUtils

      public StringUtils()

  • Method Details

    • padLeft

      public static String padLeft​(String string, int totalLength)
      This class adds spaces to the end of the given string so that the total length of the string is equal to totalLength
      Parameters:
      string - to pad
      totalLength - of the result string
      Returns:
      string that has been filled up with spaces to the length of totalLength

    • padRight

      public static String padRight​(String string, int totalLength)
      This class adds spaces to the begin of the given string so that the total length of the string is equal to totalLength
      Parameters:
      string - to pad
      totalLength - of the result string
      Returns:
      string that has been filled up with spaces to the length of totalLength

    • decodeURL

      public static String decodeURL​(String encoded)
      UTF-8 decodes an URL
      Parameters:
      encoded - URL
      Returns:
      decoded URL

    • applySha256

      public static String applySha256​(String input)
      Applies the SHA-256 algorithm to the given input. Input gets converted to UTF-8
      Parameters:
      input - to apply the SHA-256 algorithm to
      Returns:
      hexadecimal representation of SHA-256 applied string

    • readFileData

      public static byte[] readFileData​(File file, int fileLength) throws IOException
      Reads file into byte array
      Parameters:
      file - to be read
      fileLength - of the file
      Returns:
      byte contents of the file
      Throws:
      IOException - if something fails

    • saveToFile

      public static boolean saveToFile​(Path file, String data)
      Saves a string to a file
      Parameters:
      file - Path of the file to save the data in
      data - to save
      Returns:
      true if storing the data was successful, false otherwise

    • stringToMap

      public static HashMap<String,​String> stringToMap​(String input)
      Translates a String in the form of key=value&key2=value2... to a HashMap
      Parameters:
      input - string
      Returns:
      HashMap representing the input string

    • chunkSplit

      public static byte[] chunkSplit​(String data, int n, char insert)
      Inserts a char into a string every n chars. Adds linebreak at the end. Can for example be used to add a linebreak every n characters
      Parameters:
      data - to insert the chars into
      n - offset between inserts
      insert - char
      Returns:
      byte array with inserted chars

    • splitStringEvery

      public static String[] splitStringEvery​(String s, int interval)
      splits a given string into parts of maximum length of interval
      Parameters:
      s - to split
      interval - amount of chars to split the string after
      Returns:
      array of strings representing splitted input

    • getFileExtension

      public static String getFileExtension​(File file)
      Returns the file extension of a file
      Parameters:
      file - to get the extension of
      Returns:
      the files extension