Tutorial by Examples: en

Linked list representation is more efficient in terms of memory managerment. Code to show enqueue and deque in a Queue using Linklist in O(1) time. #include<stdio.h> #include<malloc.h> struct node{ int data; node* next; }; node* front = NULL; node* rear = NULL; vo...

The Vector3 structure contains some static functions that can provide utility when we wish to apply movement to the Vector3. Lerp and LerpUnclamped The lerp functions provide movement between two co-ordinates based off a provided fraction. Where Lerp will only permit movement between the two co-or...

Setup ActiveMQ Download a ActiveMQ distribution from activemq.apache.org and unpack it somewhere You can start the server immediately, running unsecured on localhost, using the script bin/activemq When it is running, you can access your local server's console on http://localhost:8161/admin/ Co...

Android Apps are written in Java. The Android SDK tools compile the code, data and resource files into an APK (Android package). Generally, one APK file contains all the content of the app. Each app runs on its own virtual machine(VM) so that app can run isolated from other apps. Android system wor...

As you know you can have one activity but different fragments embedded in it. That is why fragment lifecycle is also important for developers. On the diagram below you can see how Android fragment lifecycle looks like: As described in the official Android documentation you should implement at le...

For example if the given tree is: Level order traversal will be 1 2 3 4 5 6 7 Printing node data level by level. Code: #include<iostream> #include<queue> #include<malloc.h> using namespace std; struct node{ int data; node *left; node *right; }; ...

You can create a Sequential model by passing a list of layer instances to the constructor: from keras.models import Sequential from keras.layers import Dense, Activation model = Sequential([ Dense(32, input_dim=784), Activation('relu'), Dense(10), Activation('softmax'), ]) ...

The idea is to measure a layout before and after each change and if there is a significant change you can be somewhat certain that its the softkeyboard. // A variable to hold the last content layout hight private int mLastContentHeight = 0; private ViewTreeObserver.OnGlobalLayoutListener keyboa...

//MySingletonClass.h @interface MYSingletonClass : NSObject + (instancetype)sharedInstance; -(instancetype)init NS_UNAVAILABLE; -(instancetype)new NS_UNAVAILABLE; @end //MySingletonClass.m @implementation MySingletonClass + (instancetype)sharedInstance { static MySingleto...

This method allows non-implementation-specific code to be written and deployed across multiple jms platforms. Below basic example connects to activemq jms server and sends a message. import java.util.Properties; import javax.jms.JMSException; import javax.jms.Queue; import javax.jms.QueueConne...

When your device connects to a network, an intent is sent. Many apps don’t check for these intents, but to make your application work properly, you can listen to network change intents that will tell you when communication is possible. To check for network connectivity you can, for example, use the ...

A function can have multiple return statements and they can be placed in different parts of the actual function. They all need to return the same data type though. FUNCTION returning DATE ( dat AS DATE): IF dat < TODAY THEN DO: DISPLAY "<". RETURN dat - 200. ...

const timeFormat = "15 Monday January 2006" func ParseDate(s string) (time.Time, error) { t, err := time.Parse(timeFormat, s) if err != nil { // time.Time{} returns January 1, year 1, 00:00:00.000000000 UTC // which according to the source code is the zero va...

TTL value can be used to decide for how long the document needs to be there in the bucket. By default TTL value is 0, which means it will be there for indefinite time period. String bucketName = "bucket"; List<String> nodes = Arrays.asList("node1","node2"); // I...

function getCombinations(params, combinationsResults){ if(params.length == 0) return combinationsResults; var head = params[0]; var tail = params.slice(1); var combinationsResultsCurrent = []; if(Array.isArray(head)){ _.uniq(head).forEach(function(item){ ...

Firstly, you'll need to add the crate into your Cargo.toml file as a dependency. [dependencies] rand = "0.3" This will retrieve the rand crate from crates.io. Next, add this to your crate root. extern crate rand; As this example is going to provide a simple output through the term...

To generate characters, you can utilize the thread-local random number generator function, random. fn main() { let tuple = rand::random::<(f64, char)>(); println!("{:?}", tuple) } For occasional or singular requests, such as the one above, this is a reasonable efficien...

/* In all versions of Progress ABL you can write multi line comments */ /* They can also span a single line */ //Starting with version 11.6 you can also write single line comments //Can you nest single line comments? //Yes you can string = "HELLO". //A single line comme...

A keyword is "MONARCHY" then the matrix will look like The matrix is constructed by filling in the letters of the keyword (minus duplicates) from left to right and from top to bottom, and then filling in the remainder of the matrix with the remaining letters in alphabetic order. Plai...