Hoverable dropdown is dropdown that opens when we hover on that dropdown. This kind of dropdown are mostly used on header menu. If the user hover over on any element of the header menu then it will automatically open and render the content of that dropdown. Steps to Create ... Read More

To count the occurrence of each character in a string using Hashmap, the Java code is as follows −Example Live Demoimport java.io.*; import java.util.*; public class Demo{    static void count_characters(String input_str){       HashMap my_map = new HashMap();       char[] str_array = input_str.toCharArray();       for ... Read More

In this article, we will understand how to compute the sum of diagonals of a matrix. The matrix has a row and column arrangement of its elements. The principal diagonal is a diagonal in a square matrix that goes from the upper left corner to the lower right corner.The secondary ... Read More

In this article, we will understand how to print square star pattern. The pattern is formed by using multiple for-loops and print statements.Below is a demonstration of the same −InputSuppose our input is −Enter the length of a side : 8OutputThe desired output would be −The square pattern : * ... Read More

A string is a class of 'java.lang' package that stores a series of characters. Those characters are actually String-type objects. We must enclose the value of string within double quotes. Generally, we can represent characters in lowercase and uppercase in Java. And, it is also possible to convert lowercase characters ... Read More

Gradients displays the combination of two or more colors. Linear gradients are used to arrange two or more colors in linear formats like top to bottom. Radial gradients appear at center. Linear-Gradient The linear gradient is set using the background-image property. The angle is set as the first parameter. Here ... Read More

We can use a combination of percentage and em to specify the font-size of elements for better compatibility of font. This allows us to have uniform text across different browsers. Both percentage and em are relative measurements. Syntax The syntax of CSS font-size property is as follows. The below works ... Read More

To customize the style for the input textbox having a placeholder, we use the :placeholder-shown pseudo-class of CSS. Placeholder text is a hint for the user to understand what is to be typed in the input text field. The following examples illustrate CSS :placeholder-shown pseudo-class. Set the border for the ... Read More

The CSS * selector is a universal selector which is used to select all elements of the HTML DOM. If you want to set a similar style for the entire document, then use the Universal selector. Syntax The syntax for CSS universal selector is as follows: Place the styles you ... Read More

CSS3 provides a layout mode Flexible Box, commonly called as Flexbox. Flexbox (flexible box) is a layout mode of CSS3. Using this mode, you can easily create layouts for complex applications and web pages. It includes the container, flex items, etc. The container has the following properties − flex-direction ... Read More