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A new instance of a two dimensional array can be created using the java.lang.reflect.Array.newInstance() method. This method basically creates the two-dimensional array with the required component type as well as length.A program that demonstrates the creation of a two-dimensional array using the Array.newInstance() method is given as follows −Example Live Demoimport java.lang.reflect.Array; public class Demo { public static void main (String args[]) { int size[] = {3, 3}; int arr[][] = (int[][])Array.newInstance(int.class, size); System.out.println("The two-dimensional array is:"); for(int[] i: arr) { for(int j: i ... Read More
To add columns at a specific position in existing table, use after command. The syntax is as follows −ALTER TABLE yourTableName ADD COLUMN yourColumnName data type AFTER yourExistingColumnName;To understand the above syntax, let us first create a table. The query to create a table is as follows.mysql> create table changeColumnPosition -> ( -> Id_Position1 int, -> Name_Position2 varchar(100), -> Address_Position4 varchar(200) -> ); Query OK, 0 rows affected (0.53 sec)Now you can check the description of existing table using desc command. The syntax is as follows −desc yourTableName;The following is the query to check the description.mysql> desc changeColumnPosition;The following is ... Read More
To check whether the entered value is ASCII 7-bit numeric and character (alphanumeric), check the characters ASCII value for −A to Z Or a to z Or 0 to 9Here, we have the following value −char one = '5';Now, we have checked some conditions with if-else for ASCII 7-bit numeric and character.if ((one >= 'A' && one = 'a' && one = '0' && one = 'A' && one = 'a' && one = '0' && one = 'A' && one = 'a' && one = '0' && one
Python’s built-in open() function opens one file in read/write mode and read/write operations on it. To perform processing on multiple files in a batch, one has to use fileinput module of Python’s standard library. This module provides a Fileinput class with functionality of iterating over files. The module also defines helper functions for the same purpose.Primary interface to this module is input() function. This function returns instance of Fileinput class.fileinput.input(files, inplace, mode)The files parameter is name of one or more files to be read one by one. Each file acts as a generator and using a for loop it can ... Read More
You can use CAST() function from MySQL to achieve this. The syntax is as follows −SELECT CAST(yourColumnName as Date) as anyVariableName from yourTableName;To understand the above syntax, let us first create a table. The query to create a table is as follows −mysql> create table ConvertDateTimeToDate -> ( -> ArrivalDatetime datetime -> ); Query OK, 0 rows affected (0.37 sec)Insert the datetime in the table using insert command. The query is as follows −mysql> insert into ConvertDateTimeToDate values(date_add(now(), interval -1 year)); Query OK, 1 row affected (0.19 sec) mysql> insert into ConvertDateTimeToDate values('2017-11-21 13:10:20'); Query OK, 1 row affected ... Read More
Set a radial gradient as the background image, with radial-gradient() CSS function. You can try to run the following code to implement linear-gradient() function in CSSExampleLive Demo #demo { height: 200px; background: radial-gradient(green, orange, maroon); } Setting background as radial gradient.
The nav-down property is used to move down when you have pressed on down arrow button in keypad. You can try to run the following code to implement the CSS nav-down propertyExampleLive Demo button { position: absolute; } button#btn1 { top: 10%; left: 15%; nav-index: 1; nav-right: #btn2; nav-left: #btn4; nav-down: #btn2; nav-up: #btn4; } button#btn2 { top: 30%; left: 30%; nav-index: 2; nav-right: #btn3; nav-left: #btn1; nav-down: #btn3; nav-up: #btn1; } button#btn3 { top: 50%; left: 15%; nav-index: 3; nav-right: #btn4; nav-left: #btn2; nav-down: #btn4; nav-up: #btn2; } button#btn4 { top: 30%; left: 0%; nav-index: 4; nav-right: #btn1; nav-left: #btn3; nav-down: #btn1; nav-up: #btn3; } Result1 Result2 Result3 Result4
Use the font-size-adjust property to preserve the readability when font fallback occurs. You can try to run the following code to implement the font-size-adjust property:ExampleLive Demo #demo { font-size-adjust: 0.90; } Heading Two With font-size-adjust property: This is demo text. Without font-size-adjust property: This is demo text.
To check whether the entered value is ASCII 7-bit numeric, check the character from ‘0’ to ‘9’.Here, we have a numeric character.char one = '9';Now, we have checked a condition with if-else for numeric character from ‘0’ to ‘9’if (c >= '0' && c = '0' && c = '0' && c = '0' && c
To implement animation on the border-top-color property with CSS, you can try to run the following codeExampleLive Demo table,th,td { border: 2px solid black; } #newTable { width: 500px; height: 300px; background: yellow; border: 15px solid yellow; animation: myanim 3s infinite; background-position: bottom left; background-size: 50px; } @keyframes myanim { 30% { background-color: orange; border-spacing: 50px; border-top-color: red; } } Performing Animation for border top color Subject Student Marks Maths Amit 98 Science Sachin 99