This document contains code to send an email with an attachment programmatically. It sets up variables for the sender, recipient, CC, subject, body, and attachment filename. It then creates the necessary objects for the email message and attachment. It uses an SMTP client to send the email, handles any exceptions, and cleans up resources.
Você já viu aquele projeto Java com um pacote utils, commons, helpers e por aí vai? Vamos mostrar como aumentar sua produtividade e deixar a vida mais leve usando os componentes da biblioteca Guava. https://plus.google.com/u/0/events/ck9ni6b2g1spetp25ohuu1sf6cc
Você já viu aquele projeto Java com um pacote utils, commons, helpers e por aí vai? Vamos mostrar como aumentar sua produtividade e deixar a vida mais leve usando os componentes da biblioteca Guava. https://plus.google.com/u/0/events/ck9ni6b2g1spetp25ohuu1sf6cc
The pug templating engine is designed to be easily extensible, as well as having powerful core functionality. It was recently re-written to be more modular and structured. This talk discusses how a compiler is built out of a series of independent stages.
This talk is based on heated discussions about the syntax of asserts. Do you like the good old `assertNotEquals(id, c.getId())` or do you prefer something fancier like `assertThat(id, is(not(equalTo(c.getId()))))`?
We will take a quick look at the differences between asserts in JUnit, TestNG, Hamcrest, fest, AssertJ, and Spock. This topic is at least as important as Vim vs Emacs and tabs vs spaces!
Topic: Software engineering practices
Language: English
This power point presentation explains retrofit technology, it includes performance analysis, The libraries support, Implementation, serialization, Interfaces, Interface methods, header manipulation. You can learn more about retrofit implementation.
The pug templating engine is designed to be easily extensible, as well as having powerful core functionality. It was recently re-written to be more modular and structured. This talk discusses how a compiler is built out of a series of independent stages.
This talk is based on heated discussions about the syntax of asserts. Do you like the good old `assertNotEquals(id, c.getId())` or do you prefer something fancier like `assertThat(id, is(not(equalTo(c.getId()))))`?
We will take a quick look at the differences between asserts in JUnit, TestNG, Hamcrest, fest, AssertJ, and Spock. This topic is at least as important as Vim vs Emacs and tabs vs spaces!
Topic: Software engineering practices
Language: English
This power point presentation explains retrofit technology, it includes performance analysis, The libraries support, Implementation, serialization, Interfaces, Interface methods, header manipulation. You can learn more about retrofit implementation.
program list:
WAP program to show constructor overloading using static member.
WAP to implement multilevel inheritance and method overriding.
WAP to implement interface class and show use of package.
WAP to implement multilevel exception handling and create your own exception.
WAP to implement 3 threads such that 1st sleeps for 200ms, 2nd for 400ms and 3rd for 600ms.
WAP to create applet of moving banner.
WAP to make a simple calculator.
Build a client server chat application.
Labprogram.java
LinkedList.java
import java.util.NoSuchElementException;
public class LinkedList {
private class Node {
private T data;
private Node next;
private Node prev;
public Node(T data) {
this.data = data;
this.next = null;
this.prev = null;
}
}
private int length;
private Node first;
private Node last;
private Node iterator;
/**** CONSTRUCTORS ****/
public LinkedList() {
first = null;
last = null;
iterator = null;
length = 0;
}
/**
* Converts the given array into a LinkedList
*
* @param array the array of values to insert into this LinkedList
* @postcondition
*/
public LinkedList(T[] array) {
}
/**
* Instantiates a new LinkedList by copying another List
*
* @param original the LinkedList to copy
* @postcondition a new List object, which is an identical,
* but separate, copy of the LinkedList original
*/
public LinkedList(LinkedList original) {
}
public T getFirst() throws NoSuchElementException {
if (isEmpty()) {
throw new NoSuchElementException("The list is empty");
}
return first.data;
}
public T getLast() throws NoSuchElementException {
if (isEmpty()) {
throw new NoSuchElementException("The list is empty");
}
return last.data;
}
public T getIterator() throws NullPointerException {
if (iterator != null) {
return iterator.data;
} else {
throw new NullPointerException("Iterator is off the end opf the list.");
}
}
public int getLength() {
return length;
}
public boolean isEmpty() {
return length == 0;
}
public boolean offEnd() {
return iterator == null;
}
public void addFirst(T data) {
Node newNode = new Node(data);
if (isEmpty()) {
first = newNode;
last = newNode;
} else {
newNode.next = first;
first.prev = newNode;
first = newNode;
}
length++;
}
public void addLast(T data) {
Node newNode = new Node(data);
if (isEmpty()) {
first = newNode;
last = newNode;
} else {
last.next = newNode;
newNode.prev = last;
last = newNode;
}
length++;
}
public void addIterator(T data) throws NullPointerException {
if (offEnd()) {
throw new NullPointerException("addIterator Iterator is off end.");
}
if (iterator == last) {
addLast(data);
} else {
Node newNode = new Node(data);
Node next = iterator.next;
newNode.next = next;
newNode.prev = iterator;
iterator.next = newNode;
next.prev = newNode;
length++;
}
}
public void removeFirst() throws NoSuchElementException {
if (isEmpty()) {
throw new NoSuchElementException("The list is empty");
}
if (length == 1) {
first = null;
last = null;
iterator = null;
} else {
if (iterator == first) {
iterator = null;
}
first = first.next;
first.prev = null;
}
length--;
}
public void removeLast() throws NoSuchElementException {
if (isEmpty()) {
throw new NoSuchElementException("The list is empty");
}
if (length == 1) {
first = null;
last = null;
iterator = null;
} else {
if (iterator == last) {
iterator = null;
}
last = last.prev;
last.next = null;
}
length--;
}
public void removeIterator() throws NullPointerException {
if (offEnd()) {
throw new NullPointerException("Iterator is off the end opf the list.");
}
if (iterator .
2019-10-05 - Untangled - Voxxed days ticinoArnaud Bos
Concurrent programming borrows a lot of terms from weaving and twists our minds with intertwined concepts: fibers, threads, lightweight-threads, green threads, loom...
Maybe you've heard about coroutines? Don't worry, everything is linked.
During this talk, we'll get weaving, show code samples and talk about project Loom, whose goal is to bring "lightweight concurrency" mechanisms to the JVM, along with APIs to embroider the story.
We will talk about project Loom's inception and recent prototypes. You will also see its mesh goes far beyond "simple" primitives to revolutionize the JVM.
Actors testing is different from what you are used to. First, you have messages instead of calls, second, you have to deal with concurrency and all the consequences that it brings with it:
* Thread.sleeps in tests;
* Flakiness;
* Green on laptop / red on jenkins;
* Missed test cases.
Fortunately Akka provides a TestKit which helps to avoid all these things when used properly. Let's take out and inspect tools from this kit and learn couple of useful patterns.