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View لاب1 تحليل بيانات
test1
Q1
The Chinook database contains all invoices from the beginning of 2009 till the end of 2013. The employees at Chinook store are interested in seeing all invoices that happened in 2013 only. Using the Invoice table, write a query that returns all the info of the invoices in 2013.
SL1:
SELECT *
FROM Invoice
WHERE InvoiceDate BETWEEN '2013-01-01' AND '2014-01-01' ;
Q2
@udacityandroid
udacityandroid / onCreate method in MainActivity.java
Created May 13, 2016
Use OnClickListeners for All Categories - onCreate method in MainActivity.java
View onCreate method in MainActivity.java
// Find the View that shows the numbers category
TextView numbers = (TextView) findViewById(R.id.numbers);
// Set a click listener on that View
numbers.setOnClickListener(new View.OnClickListener() {
// The code in this method will be executed when the numbers View is clicked on.
@Override
public void onClick(View view) {
Intent numbersIntent = new Intent(MainActivity.this, NumbersActivity.class);
startActivity(numbersIntent);
@udacityandroid
udacityandroid / MainActivity.java
Last active Sep 12, 2019
Android for Beginners : Add the Chocolate Topping Checkbox Solution Java
View MainActivity.java
package com.example.android.justjava;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.CheckBox;
import android.widget.TextView;
/**
* This app displays an order form to order coffee.
@udacityandroid
udacityandroid / activity_main.xml
Last active Aug 27, 2019
Android for Beginners : Add the Chocolate Topping Checkbox Solution XML
View activity_main.xml
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
@udacityandroid
udacityandroid / Code snippet in SmoothieActivity.java
Last active Jul 13, 2019
Android for Beginners : If/Else Smoothie Quiz
View Code snippet in SmoothieActivity.java
int numberOfSmoothiesTillPrize = 10;
if (numberOfSmoothiesTillPrize > 9) {
Log.v("SmoothieActivity", "Congratulations, you get a free smoothie!");
numberOfSmoothiesTillPrize = numberOfSmoothiesTillPrize - 10;
} else {
Log.v("SmoothieActivity", "No free smoothie this time.");
}
Log.v("SmoothieActivity", "You currently have " + numberOfSmoothiesTillPrize + " out of 10 smoothies needed for your next free smoothie.");
@udacityandroid
udacityandroid / Code snippet in InboxActivity.java
Last active Jun 29, 2019
Android for Beginners : If/Else Email Quiz
View Code snippet in InboxActivity.java
int numberOfEmailsInInbox = 0;
int numberOfDraftEmails = 2;
String emailMessage = "You have " + numberOfEmailsInInbox + " emails. ";
String draftMessage = "You have " + numberOfDraftEmails + " email drafts.";
if (numberOfEmailsInInbox == 0) {
emailMessage = "You have no new messages. ";
}
if (numberOfDraftEmails == 0) {
draftMessage = "You have no new drafts.";
@udacityandroid
udacityandroid / Code snippet in WeatherActivity.java
Last active Jul 22, 2019
Android for Beginners : If/Else Weather Quiz
View Code snippet in WeatherActivity.java
boolean isRaining = false;
Log.v("WeatherActivity", "Thank you for using the WhetherWeather App.");
if (isRaining) {
Log.v("WeatherActivity", "It's raining, better bring an umbrella.");
} else {
Log.v("WeatherActivity", "It's unlikely to rain.");
}
@udacityandroid
udacityandroid / Method 1
Last active Jul 2, 2019
Android Development for Beginners : Define a Method
View Method 1
private String createCalendarEventReminder(String eventName, String location, int minutesAway) {
String reminder = "You have an upcoming event in " + minutesAway + " minutes.";
reminder = reminder + " It is " + eventName + " held at " + location + ".";
return reminder;
}
View New method in MainActivity.java
/**
* This method displays the given text on the screen.
*/
private void displayMessage(String message) {
TextView priceTextView = (TextView) findViewById(R.id.price_text_view);
priceTextView.setText(message);
}
View New method in MainActivity.java
/**
* This method displays the given price on the screen.
*/
private void displayPrice(int number) {
TextView priceTextView = (TextView) findViewById(R.id.price_text_view);
priceTextView.setText(NumberFormat.getCurrencyInstance().format(number));
}
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