You can grab the latest source at http://svn.edthedev.com/projects/eeePy/.

cLauncher.py

Curses application launcher

#!/usr/bin/env python

# Copyright Edward Delaporte 2010
# URI: edthedev.com

# Licensed under the Eclipse Public License v. 1.0
# www.opensource.org/licenses/eclipse-1.0.php

from os import system
from FavoriteApps import FavoriteApps
from cWindow import CursesWindow
from ClassInspector import ClassInspector

def runMethod(screen, method, historyFile=None):
    args = ClassInspector.getMethodArguments(FavoriteApps, method)
    if(len(args)==0):
        # Run the command.
        getattr(FavoriteApps, method)()
    else:
        argInputs = {}
        for arg in args:
            argInputs[arg]= getInput(screen, "Enter argument for %s" % arg)
        # Run the command with arguments.    
        getattr(FavoriteApps, method)(**argInputs)


myClasses = {'FavoriteApps':FavoriteApps}

window = CursesWindow()

selection = ''
while selection != 'exit':
    window.displayList(myClasses, 'Available classes:')
    selection = window.getInput("Choose a class: ")
    for className in myClasses:
        if selection in className:
            classObj = ClassInspector(myClasses[className])

            command = ''
            while command != 'exit':
                window.displayList(classObj.methods, 'Available commands:')
                # window.drawMethodMenu(classObj.methods)
                command = window.getInput("Enter a command: ") 
                for method in classObj.methods:
                    if command in method:
                        window.output("Running %s" % method)
                        runMethod(window.screen, method)

del window

ClassInspector.py

import inspect


class ClassInspector(object):
    def init(self, classObj):
        self.classObj = classObj
        self.methods = self.getMethodsInClass(self.classObj)
        self.methodArgs = {}
        #for method in self.methods:
        #    self.methodsArgs[method] = self.getMethodArguments(self.classObj, method)

@staticmethod
def getMethodsInClass(classObj):
    results = []
    for name in dir(classObj):
        obj = getattr(classObj, name)
        if (inspect.ismethod(obj) or inspect.isfunction(obj)):
            results.append(name)
    return results

@staticmethod
def getMethodArguments(classObj, methodName):
    method = getattr(classObj, methodName)
    argDetails = inspect.getargspec(method)
    (args, _, _, defaults) = argDetails
    return args

UPDATE: I updated it to use the curses (plain text) library rather than requiring tkinter (graphics). If you’re running Linux or Apple OSX you have curses installed already. If you’re running Windows, you can install NCurses but may need to tweak the code a little. You can still find the tkinter version in SVN repository.

System.arraycopy(intervals,0,temp,0, intervals.length);
System.arraycopy(biggerByteArray,0,temp,intervals. length,
biggerByteArray.length);

Convert a string into bytes

Java – String.getBytes(“US-ASCII” or “UTF-8″)

C#

System.Text.UTF8Encoding stringToBytes = new System.Text.UTF8Encoding();
Byte[] inputBytes = stringToBytes.GetBytes(input);

Check Endian-ness of your system.

Java – Emulates a big endian system

Java – Let’s you inspect the underlying chip with java.nio.ByteOrder.nativeOrder()

C# – System.BitConverter.IsLittleEndian

C# – IPAddress.HostToNetworkOrder

SHA One way hash

C# – System.Security.Cryptography.SHA256Managed

Java – java.security.MessageDigest

cat /dev/urandom| tr -dc 'a-zA-Z0-9-_!@#$%^&*()_+{}|:<>?=' | fold -w 1048 | head -n1 | wc -m

And use this to actually fetch the long string.

cat /dev/urandom| tr -dc 'a-zA-Z0-9-_!@#$%^&*()_+{}|:<>?=' | fold -w 1048 | head -n1 | wc -m

Here’s a much simpler example, in case you just want a quick four digit number:

cat /dev/urandom| tr -dc ’0-9′ | fold -w 4 | head -n1

Here’s my Java version of my previous article about C# Debug Output.

    private static final boolean DEBUG = true;
    private static void DebugOutput(String message)
    {
        DebugOutput(message, null);
    }


private static void DebugOutput(String message, Object details)
{
    if(DEBUG)
    {
        System.out.println(message + ": " + details.toString());
    }
}

public override String ToString() 
{
   return "' Search scope: " + this.searchScope
    + " Filter: '" + this.getFilter()
    + "' Search base: '" + this.searchBase + "'"
    + " Returned attributes: {" + String.Join(" , ", this.returnedAttributes.ToArray()) + "}";
}

private static void DebugOutput(String message)
{
   DebugOutput(message, null);
}


private static void DebugOutput(String message, object details)
{

if DEBUG

System.Console.WriteLine(message, details);

endif

}

Step 1: Get Eclipse setup for Android development: Installing the Eclipse Android Plugin

Step 2: Write ‘Hello World’: Hello World for Android with Eclipse

Step 3: Bask in the aura of how much nicer Java is than Objective-C, and how much simpler it is to read two web pages than watch 15 videos through iTunes.

It’s hard to express how nice a first impression the Android plugin for Eclipse makes. It’s a much nicer experience to work with than XCode. Of course, so is getting poked in the eye by a monkey; so not the most relevant comparison.