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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 More
The getMaxUserNameLength() method of the DatabaseMetaData interface is used to find out the maximum number of characters that the underlying database allows in the name of a user.This method returns an integer value, representing the maximum number of characters allowed in a user name. If this value is 0 it indicates that there is no limit or, the limit is unknown.To get the Maximum length of a user using this method:Make sure your database is up and running.Register the driver using the registerDriver() method of the DriverManager class. Pass an object of the driver class corresponding to the underlying database.Get the ... Read More
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 More
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 More
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 More
There are a couple of ways to empty an array in javascript.Let's suppose take an arrayvar array1 = [1, 2, 3, 4, 5, 6, 7];Method 1var array1 = [];The code above will set the number array to a new empty array. This is recommended when you don't have any references to the original array 'array1'. You should be careful with this way of empty the array, because if you have referenced this array from another variable, then the original reference array will remain unchanged.Example var array1 = [1, 2, 3, 4, 5, 6, 7]; // ... Read More
The stroke() method of the HTML canvas is used to draw the path. This path is drawn with moveTo() and lineTo() method. The element allows you to draw graphics on a web page using JavaScript. Every canvas has two elements that describes the height and width of the canvas i.e. height and width respectively.Following is the syntax −ctx.stroke()Let us now see an example to implement the stroke() method of canvas −Example Live Demo var c = document.getElementById("newCanvas"); var ctx = c.getContext("2d"); ctx.beginPath(); ctx.moveTo(100, 200); ctx.lineTo(100, 100); ctx.strokeStyle = "blue"; ... Read More
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 More
The circle inscribed in a regular hexagon has 6 points touching the six sides of the regular hexagon.To find the area of inscribed circle we need to find the radius first. For the regular hexagon the radius is found using the formula, a(√3)/2.Now area of the circle inscribed is 3πa*a/4SampleSide of hexagon − 4Area = 37.68Example Code Live Demo#include int main(void) { int a = 14; float pie = 3.14; float area = (float)(3*a*a*pie/4); printf("The area of circle inscribed in the hexagon of side %d is %f", a, area); return 0; }OutputThe area of circle ... Read More
The HTML DOM Input Week stepUp() method defines the amount of weeks the week field should increase.SyntaxFollowing is the syntax −Calling stepUp() method with a number, which by default is equal to 1inputWeekObject.stepUp(number)ExampleLet us see an example for Input Week stepUp() method − Live Demo Input Week stepUp() form { width:70%; margin: 0 auto; text-align: center; } * { padding: 2px; margin:5px; } input[type="button"] { border-radius: 10px; } Week-stepUp( ... Read More