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Articles by Sai Subramanyam
67 articles
What is constructor chaining in Java?
Constructors are similar to methods but, They do not have any return type. The name of the constructor is same as the name of the class. Every class has a constructor. If we do not explicitly write a constructor for a class, the Java compiler builds a default constructor for that class. Each time a new object is created, at least one constructor will be invoked. A class can have more than one constructor. this() and super() are used to call constructors explicitly. Where, using this() you can call the current class’s constructor and using super() you can ...
Read MoreHow to set the width of an element's border with JavaScript?
To set the width of an element’s border in JavaScript, use the borderWidth property. Set the width using this property. You can try to run the following code to learn how to set the width of an element’s border − Example Live Demo #box { border: thick solid gray; width: 300px; height: 200px } Demo Text Change border width function display() { document.getElementById("box").style.borderWidth = "thin"; }
Read MoreHow to set outline color with JavaScript?
To set outline color, use the outlineColor property in JavaScript. You can try to run the following code to learn how to implement outlineColor property − Example Live Demo #box { border: 2px solid red; } Demo Content Change outline color function display() { document.getElementById("box").style.outlineColor = "#FF5733"; document.getElementById("box").style.outline = "2px solid"; }
Read MoreHow to set the maximum height of an element with JavaScript?
Use the maxHeight property in JavaScript to set the maximum height. You can try to run the following code to set the maximum height of an element with JavaScript −Example #box { width: 300px; background-color: gray; overflow: auto; } Click below to set Maximum height. Max Height This is a div. This is a div. This is a div. This is a div. This is a div. This is a div. This is a div. This is a div. This is a ...
Read MoreHow to offset an outline and draw it beyond the border edge with JavaScript?
To offset an outline, use the outlineOffsetproperty. It allows you to draw the outline beyond the border edge. You can try to run the following code to offset an outline and draw it beyond the border edge with JavaScript. Example #box { width: 450px; background-color: orange; ...
Read MoreWhat will happen when [50,100] is converted to Number in JavaScript?
Use the Number() method in JavaScript to convert to Number. You can try to run the following code to learn how to convert [50, 100] to Number in JavaScript − Example Live Demo Convert [50,100] to Number var myVal = [50,100]; document.write("Number: " + Number(myVal));
Read MoreHow to set all the border left properties in one declaration with JavaScript?
To set all the border left properties in a single declaration, use the borderLeft property. You can try to run the following code to learn how to set the border left properties − Example Live Demo #box { border: thick solid gray; width: 300px; height: 200px } Demo Text Change left border function display() { document.getElementById("box").style.borderLeft = "thick solid #000000"; }
Read MoreWhat does language attribute do in <script> tag in Javascript?
The language attribute is used to mention the scripting language. Typically, its value will be javascript. Although recent versions of HTML (and XHTML, its successor) have phased out the use of this attribute. Yes, it is now deprecated. Here you can see how it was used.
Read MoreWhen should I use an Inline script and when to use external JavaScript file?
To enhance performance, try to keep JavaScript external. The separate code makes it easier for web browsers to cache. However, use inline scripts only when you’re making single page websites. Still, it's better to use external code i.e. external JavaScript. To place JavaScript in external file create an external JavaScript file with the extension .js. After creating, add it to the HTML file in the script tag. The src attribute is used to include that external JavaScript file. If you have more than one external JavaScript file, then add it to the same web page to increase the performance of ...
Read MoreHow to convert an Array to a Set in Java?
One solution to add an array to set is to use the addAll() method of the Collections class. This method accepts a collection and an element and, it adds the given element to the specified Collection. Example Live Demo import java.util.Collections; import java.util.HashSet; import java.util.Set; public class ArrayToSet { public static void main(String args[]) { Integer[] myArray = {23, 93, 56, 92, 39}; Set set = new HashSet(); Collections.addAll(set, myArray); System.out.println(set); } } Output [23, 39, 56, 92, 93]
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