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Articles on Trending Technologies
Technical articles with clear explanations and examples
8085 program to count total odd numbers in series of 10 numbers
In this program we will see how to count number of odd numbers in a block of elements.Problem StatementWrite 8085 Assembly language program to count number of odd numbers in a block of data, where the block size is 10D. The block is starting from location 8000H.DiscussionThe Odd Even checking is very simple. we can determine one number is odd or even by checking only the LSb. When LSb is 1, the number is odd, otherwise it is even. In this program we are taking a number from memory and then ANDing 01H with it. if the result is nonzero, ...
Read MoreHow to return rows that have the same column values in MySQL?
Use GROUP BY clause for this. Let us first create a table −mysql> create table DemoTable -> ( -> StudentId int, -> StudentMarks int -> ); Query OK, 0 rows affected (4.71 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(23, 58); Query OK, 1 row affected (0.70 sec) mysql> insert into DemoTable values(25, 89); Query OK, 1 row affected (0.46 sec) mysql> insert into DemoTable values(26, 58); Query OK, 1 row affected (1.13 sec) mysql> insert into DemoTable values(28, 98); Query OK, 1 row affected (0.86 sec)Display ...
Read MoreC++ Program to Generate All Possible Combinations of a Given List of Numbers
This is a C++ program to generate all possible combinations of a given list of numbersAlgorithmsBegin Take the number of elements and the elements as input. function Combi(char a[], int reqLen, int s, int currLen, bool check[], int l) : If currLen>reqLen then Return Else if currLen=reqLen then Then print the new generated sequence. If s=l then Then return no further element is left. For every index there are two option: either proceed with a start as ‘true’ and recursively call Combi() with incremented value of ...
Read MoreOrdering string as a number in a database?
To order string as a number, use CAST(). Following is the syntax −select *from yourTableName ORDER BY CAST(yourColumnName AS SIGNED) DESC;Let us first create a table −mysql> create table DemoTable ( Id varchar(100) ); Query OK, 0 rows affected (0.18 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('3'); Query OK, 1 row affected (0.07 sec) mysql> insert into DemoTable values('20'); Query OK, 1 row affected (0.07 sec) mysql> insert into DemoTable values('34'); Query OK, 1 row affected (0.06 sec) mysql> insert into DemoTable values('21'); Query OK, 1 row ...
Read MoreHow to set Raised and Lowered EtchedBorder for components in Java?
To set raised EtchedBorder −Border raisedBorder = new EtchedBorder(EtchedBorder.RAISED);To set lowered EtchedBorder −Border loweredBorderEtched = new EtchedBorder(EtchedBorder.LOWERED);Now, set both the borders for components −JButton raisedButton = new JButton("Raised Border"); raisedButton.setBorder(raisedBorder); JLabel loweredLabel = new JLabel("Lowered Border Etched"); loweredLabel.setBorder(loweredBorderEtched);The following is an example to set raised and lowered EtchedBorder for components −Examplepackage my; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.border.Border; import javax.swing.border.EmptyBorder; import javax.swing.border.SoftBevelBorder; import javax.swing.border.EtchedBorder; public class SwingDemo { public static void main(String args[]) { JFrame frame = new JFrame("Demo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); ...
Read More8085 program to determine if the number is prime or not
In this program we will see how to check a number is prime or not using 8085.Problem StatementWrite 8085 Assembly language program to check whether a given number is prime or not.DiscussionHere the approach is little bit different. We are actually counting the number of unique factors. For prime numbers the factors are only two. The 1 and the number itself. So if the result is 02H, then it is prime, otherwise not a prime number. As there is no division operation, we have to perform division by subtracting repeatedly.InputAddressDataF10007 AddressDataF100FF AddressDataF1002F Flow Diagram ProgramAddressHEX CodesLabelsMnemonicsCommentsF00021, 00, F1 LXI H, F100Point to F100 to take ...
Read MoreMySQL query to select a count on two separate conditions?
Use CASE statement for this. Let us first create a table −mysql> create table DemoTable -> ( -> StudentMarks int, -> isValid tinyint(1) -> ); Query OK, 0 rows affected (0.68 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(45, 0); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(78, 1); Query OK, 1 row affected (0.26 sec) mysql> insert into DemoTable values(45, 1); Query OK, 1 row affected (0.31 sec) mysql> insert into DemoTable values(78, 1); Query OK, 1 row affected (0.22 sec) ...
Read MoreHow to get last 12 digits from a string in MySQL?
You can use RIGHT() function from MySQL to get the last 12 digits from a string. Let us first create a table −mysql> create table DemoTable ( Number varchar(200) ); Query OK, 0 rows affected (0.59 sec)Insert records in the table using insert command −mysql> insert into DemoTable values('7437647847847474374747464647484949959958484'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values('9990000399494959697080800007007070808080808'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values('1211111212344554444443333345555554433333333333333'); Query OK, 1 row affected (0.14 sec)Display all records from the table using select statement −mysql> select * from DemoTable;This will produce the following ...
Read MoreHow do you earn bitcoins?
Bitcoin is the latest buzz in the world of digital currency at the moment and those who see its significance from a permissive outlook, they go for it because they know it that through this magical currency they can make money faster and become rich. Well, I am sorry to burst that bubble, but to be honest; Bitcoin is like any other currency out there. Like there is no easy way to make money, similarly, there is no other or magical way to gain cryptocurrency or Bitcoins too.However, cryptocurrency may open up a new method of earning, but the basic ...
Read MoreHow to display a large component within a smaller display area in Java?
To display a large component in a smaller display area, use JScrollPane, so that it’s easier for user to scroll through the component. The following is an example to display large component within a smaller display area in Java −Examplepackage my; import java.awt.BorderLayout; import java.awt.Dimension; import javax.swing.Box; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JScrollPane; public class SwingDemo { public static void main(String args[]) { JFrame frame = new JFrame("Demo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JButton button1 = new JButton("One"); JButton button2 = new JButton("Two"); JButton button3 = new JButton("Three"); ...
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