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What is Dodecahedron?The word ‘dodecahedron’ is derived from the Greek words where, dodeca means ‘twelve’ and hedron specifies ‘faces’. Dodecahedron in geometric is a 3-D platonic or regular solid with twelve flat faces. Like, other figures dodecahedron also have properties and those are −20 polyhedron vertices30 polyhedron edges12 pentagonal faces, as a pentagon is a five-sided polygonGiven below is the figure of dodecahedronProblemGiven with an edge, the program must find the surface area of dodecahedron where surface area is the total space occupied by the faces of the given figure.To calculate surface area of dodecahedron there is a formula −ExampleInput-: ... Read More
Given with certain values the program will develop an EMI calculator to generate the needed output. EMI stands for Equated Monthly Installment. So this calculator will generate monthly EMI amount for the user.ExampleInput-: principal = 2000 rate = 5 time = 4 Output-: Monthly EMI is= 46.058037The formula used in the below program is −EMI : (P*R*(1+R)T)/(((1+R)T)-1)where, P indicates loan amount or the Principal amount.R indicates interest rate per monthT indicates loan time period in yearApproach used below is as followsInput principal, rate of interest and time in float variableApply the formula to calculate the EMI amountPrint the ... Read More
The new operator is used in Java to create new objects. It can also be used to create an array object.Let us first see the steps when creating an object from a class −Declaration − A variable declaration with a variable name with an object type.Instantiation − The 'new' keyword is used to create the object.Initialization − The 'new' keyword is followed by a call to a constructor. This call initializes the new object.Now, let us see an example −Examplepublic class Puppy { public Puppy(String name) { // This constructor has one parameter, name. ... Read More
The HTML DOM Textarea defaultValue property returns and modify the value of name attribute of a text area element in an HTML document.SyntaxFollowing is the syntax −1. Returning nameobject.name2. Adding nameobject.name = “text”Let us see an example of HTML DOM Textarea name Property:Example body { color: #000; background: lightseagreen; height: 100vh; } .btn { background: #db133a; border: none; height: 2rem; border-radius: 2px; width: 40%; display: block; ... Read More
Writing a class within another is allowed in Java. The class written within is called the nested class, and the class that holds the inner class is called the outer class. Nested classes are divided into two types −Non-static nested classes (Inner Classes) − These are the non-static members of a class.Static nested classes − These are the static members of a class.Following are the types of Nested classes in Java −Non-static nested classes (Inner Classes)Inner classes are a security mechanism in Java. We know a class cannot be associated with the access modifier private, but if we have the class as a ... Read More
At first sort the array −int intArr[] = {55, 20, 10, 60, 12, 90, 59}; // sorting array Arrays.sort(intArr);Now, set the value to be searched in an int variable −int searchVal = 12;Check for the presence of a value in an array −int retVal = Arrays.binarySearch(intArr, searchVal); boolean res = retVal > 0 ? true : false;Following is an example to check if a value is present in an array −Exampleimport java.util.Arrays; public class Main { public static void main(String[] args) { // initializing unsorted int array int intArr[] = {55, 20, 10, ... Read More
Let’s say the string is −String str = "Malyalam";Let’s say the prefixes are in an array −String[] prefixArr = { "Ga", "Ma", "yalam" };Now, to check whether the string starts with any of the abive prefix, use the startsWith() −if (Stream.of(prefixArr) .anyMatch(str::startsWith)) System.out.println("TRUE"); else System.out.println("FALSE");Following is an example to check is a string starts with any of the given prefixes −Exampleimport java.util.stream.Stream; class Main { public static void main(String[] args) { String str = "Malyalam"; String[] prefixArr = { "Ga", "Ma", "yalam" }; if (Stream.of(prefixArr) ... Read More
The HTML DOM TableHeader abbr property returns and modify the value of abbr attribute of a table in an HTML document.SyntaxFollowing is the syntax −1. Returning abbrobject.abbr2. Adding abbrobject.abbr = “text”Let us see an example of abbr property:Example Live Demo body { color: #000; background: lightblue; height: 100vh; text-align: center; } table { margin: 2rem auto; width: 400px; } .btn { background: #db133a; border: none; height: 2rem; ... Read More
The HTML DOM table tHead property returns the element of the table in an HTML document.SyntaxFollowing is the syntax −object.tHeadLet us see an example of HTML DOM table tHead property −Example Live Demo body { color: #000; background: lightblue; height: 100vh; text-align: center; } table { margin: 2rem auto; } caption { color: #db133a; } .btn { background: #db133a; border: none; height: 2rem; ... Read More
The HTML DOM table tBodies Collection returns a collection of all elements in a table in an HTML document.SyntaxFollowing is the syntax −object.tBodiesProperties of tBodies CollectionPropertyExplanationlengthIt returns the number of elements in the collection in an HTML documentProperties of tBodies CollectionMethodExplanation[index]It returns the specified index element from the collection.item(index)It returns the specified index element from the collection.namedItem(id)It returns the specified id element from the collection.Let us see an example of HTML DOM table tBodies Collection −Example Live Demo body { color: #000; background: lightblue; ... Read More