Audhil

Calendar cal = Calendar.getInstance();              
Intent intent = new Intent(Intent.ACTION_EDIT);
intent.setType("vnd.android.cursor.item/event");
intent.putExtra("beginTime", cal.getTimeInMillis());
intent.putExtra("allDay", false);
intent.putExtra("rrule", "FREQ=DAILY");
intent.putExtra("endTime", cal.getTimeInMillis()+60*60*1000);
intent.putExtra("title", "A Test Event from android app");
startActivity(intent);

Audhil

//  showing alert dialog
private void showAlertDialog(int pos, String optionTxt) {
        final EditText edittext = new EditText(getApplicationContext());
        final AlertDialog dialog = new AlertDialog.Builder(this)
                .setTitle(getString(R.string.optionSpace) + (pos + 1))
                .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        System.out.println("ding! Ok clicked!");
                    }

Audhil

//  copying
    public static Object copy(Object orig) {
        Object obj = null;
        try {
            // Write the object out to a byte array
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(bos);
            out.writeObject(orig);
            out.flush();
            out.close();

Audhil

fun generateRandomPassword(): String {
    val chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
    var passWord = ""
    for (i in 0..31) {
        passWord += chars[Math.floor(Math.random() * chars.length).toInt()]
    }
    return passWord
}

Audhil

print ('top level in one.py')


def matter():
    print ('this is matter() in one.py')


if __name__ == '__main__':
    print("one.py is being run directly and __name__ is : ", __name__)
    matter()

Audhil

//  Java code
BufferedReader br = null;
br = new BufferedReader(new InputStreamReader(assetManager.open(actualFilename)));
String line;
ArrayList<String> labels = new ArrayList<String>();
while ((line = br.readLine()) != null) {
    labels.add(line);
}
br.close();

Audhil

Hands dirty with Python Numpy arrays

Audhil

# 't' is [[[1, 1, 1], [2, 2, 2]], [[3, 3, 3], [4, 4, 4]]]
shape(t) ==> [2, 2, 3]

# 't' is [[[1, 1, 1], [2, 2, 2]], [[3, 3, 3], [4, 4, 4]]]]
size(t) ==> 12

# 't' is [[[1, 1, 1], [2, 2, 2]], [[3, 3, 3], [4, 4, 4]]]
# shape of tensor 't' is [2, 2, 3]
rank(t) ==> 3
Note: The rank of a tensor is not the same as the rank of a matrix. 

Audhil

##Big O notations - of algorithms

Big O describes the worst case scenario, can be used to define execution time or space used (e.g. in memory or on disk) by an algorithm.

////////////////////////////////////////////////////////////////////////////////////////////////////////////////
O(1)
executes in same time or space regardless of size of the input data

vals = [None,'jack','and','jill']

Audhil

package com.example.demo

import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import kotlinx.coroutines.experimental.*

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)