A Binary Search Tree is a sorted binary tree in which all the nodes have following two properties − The right sub-tree of a node has all keys greater than to its parent node's key. The left sub-tree of a node has all keys less than to its parent node's key. Each ... Read More

To get the records of the last days from the current date, you need to use DATE_SUB(). We will also use NOW() to get the current date. The syntax for the same is as followsSELECT *FROM yourTableName WHERE yourDateTimeColumnName BETWEEN DATE_SUB(DATE(NOW()), INTERVAL 2 DAY) AND DATE_SUB(DATE(NOW()), INTERVAL 1 DAY);Let us ... Read More

To create database only once, use the below syntax.CREATE DATABASE IF NOT EXISTS yourDatabaseName;To create table only once, use the below syntax −CREATE TABLE IF NOT EXISTS yourTableName (    yourColumnName yourDatatype,    .    .    .    N );Let us implement both the above syntaxes to create database ... Read More

This example demonstrate about How to make custom dialog with custom dialog view actions in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. ... Read More

The toCollection() method of the Collectors class in Java returns a Collector that accumulates the input elements into a new Collection in encounter order.The syntax is as followsstatic Collector toCollection(Supplier collectionFactory)Here, the parameterT - Type of the input elementsC - Type of the resulting CollectionSupplier: A supplier of resultscollectionFactory ... Read More

The 8085AH-2 always works with a clock period of 200nS. We start the calculations by assuming that the valid address, and IO/M* signals are sent by the 8085AH-2 time 0 nS. After that the, Arithmetic Logical Unit moves to state 0 at 50 nS (tAL), and RD* gets activated at ... Read More

The take() method of the ArrayBlockingQueue class fetch and removes the head of this queue, waiting if necessary until an element becomes available.The syntax is as followspublic E take() throws InterruptedExceptionTo work with ArrayBlockingQueue class, you need to import the following packageimport java.util.concurrent.ArrayBlockingQueue;The following is an example to implement take() ... Read More

We write a program in the 8085 which is written in assembly language just for the implementation of a decimal counter which is used by the logic controller interface. The input of the starting count must be the input through the complete interface and moreover we display the count on ... Read More

To check if value exists in a comma separated list, you can use FIND_IN_SET() function.The syntax is as followsSELECT *FROM yourTablename WHERE FIND_IN_SET(‘yourValue’, yourColumnName) > 0;Let us first create a table. The query to create a table is as followsmysql> create table existInCommaSeparatedList - > ( ... Read More

To get the hash code value of the list, you need to use the hashCode() method of the CopyOnWriteArrayList class.The syntax is as followspublic int hashCode()To work with CopyOnWriteArrayList class, you need to import the following packageimport java.util.concurrent.CopyOnWriteArrayList;The following is an example to implement CopyOnWriteArrayList class hashCode() method in JavaExample Live ... Read More