The last three clock cycles in the OUT 25H instruction is an example for IOW machine cycle. Waveforms for IOW machine cycle are shown in the figure below: The point to be noted that in an IOW machine cycle, Wand Z registers have identical 8-bit port address. There is also a ... Read More

You can select most recent date out of a set of several possible timestamps with the help of ORDER BY clause.The syntax is as followsSELECT yourColumnName1, yourColumnName2, ...N FROM yourTableName ORDER BY yourTimestampColumnName DESC LIMIT 1;To understand the above syntax, let us create a table. The query to create a ... Read More

The iterator() method of the IntStream class in Java is used to return an iterator for the elements of this stream.The syntax is as followsPrimitiveIterator.OfInt iterator()Here, PrimitiveIterator.OfInt is an Iterator specialized for int values. To work with the IntStream class in Java, import the following packageimport java.util.stream.IntStream;Create an IntStream and ... Read More

This example demonstrate about How to store json values in object 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.     In ... Read More

27128 receives the Address A13-8 by 27128 from 8085AH by means of the octal line driver 74LS244, which has a propagation delay of 12 nS. Address ranging from A7-0 is received by 27128 from 8085AH by means of 74LS373 octal latch, which consists of a propagation delay of 30 nS. ... Read More

Information is also stored in an Input Output port chip similar to a memory chip. Information of 1 byte are stored in an Input Output port chip on the other hand information of few bytes are stored in the Input Output port chips. An example to be cited as only ... Read More

You need to use subquery with select statement, one select for inner and one for outer. The inner select will return rows and outer will order by ascending order. The syntax is as follows:SELECT *FROM (    SELECT *FROM yourTableName ORDER BY yourColumnName1 DESC LIMIT 9 ) AS anyAliasName ORDER ... Read More

To prevent negative numbers in MySQL, you need to use INT UNSIGNED. Let’s say you created a table with a column as int i.e. UserGameScores heremysql> create table preventNegativeNumberDemo    - > (    - > UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY,    - > UserName varchar(20),   ... Read More

Remove all the elements from the list using the clear() method of the AbstractList class. After using the method, the list won’t be having any elements.The syntax is as followspublic void clear()To work with the AbstractList class, import the following packageimport java.util.AbstractList;The following is an example to implement clear() method ... Read More

In some situations, we should not allow to take screen shots of our application. This example demonstrate about how do I prevent Android taking a screenshot when my app goes to the background.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill ... Read More