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Given with the number n the task is to calculate the factorial of a number. Factorial of a number is calculated by multiplying the number with its smallest or equal integer values.Factorial is calculated as −0! = 1 1! = 1 2! = 2X1 = 2 3! = 3X2X1 = 6 4! = 4X3X2X1= 24 5! = 5X4X3X2X1 = 120 . . . N! = n * (n-1) * (n-2) * . . . . . . . . . .*1ExampleInput 1 -: n=5 Output : 120 Input 2 -: n=6 Output : 720There are multiple methods that ... 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 StringTokenizer class allows an application to break a string into tokens. Following are the methods −Sr.NoMethod & Description1int countTokens()This method calculates the number of times that this tokenizer's nextToken method can be called before it generates an exception.2boolean hasMoreElements()This method returns the same value as the hasMoreTokens method.3boolean hasMoreTokens()This method tests if there are more tokens available from this tokenizer's string.4Object nextElement()This method returns the same value as the nextToken method, except that its declared return value is Object rather than String.5String nextToken()This method returns the next token from this string tokenizer.6String nextToken(String delim)This method returns the next token in this ... Read More
The HTML DOM Textarea autofocus property returns and modify whether the text area should automatically get focused or not when the page loads.SyntaxFollowing is the syntax −1. Returning autofocusobject.autofocus2. Modifying autofocusobject.autofocus = true | falseLet us see an example of HTML DOM Textarea autofocus Property:Example body { color: #000; height: 100vh; } .btn { background: #db133a; border: none; height: 2rem; border-radius: 2px; width: 40%; display: block; color: #fff; ... Read More
To traverse through a HashMap, use Iterator. The HashMap class uses a hashtable to implement the Map interface. This allows the execution time of basic operations, such as get( ) and put( ), to remain constant even for large sets.Following is the code to traverse through a HashMap −Exampleimport java.util.*; public class Main { public static void main(String args[]) { HashMap hashMap = new HashMap(); hashMap.put("John", new Integer(10000)); hashMap.put("Tim", new Integer(25000)); hashMap.put("Adam", new Integer(15000)); hashMap.put("Katie", new Integer(30000)); hashMap.put("Jacob", new Integer(45000)); ... 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
The compareUnsigned() method compares two integer objects numerically considering the values as unsigned.The return value if 0 if both values are equal; -1 if the val1is less than val2. The return value is 1, if the val1 is more than val2.At first, set two Integer objects −int val1 = 50; int val2 = -10;Now, compare them considering the values as unsigned −System.out.println(Integer.compareUnsigned(val1, val2));Following is an example to implement the compareUnsigned() method in Java −Examplepublic class Main { public static void main(String[] args) { int val1 = 50; int val2 = -10; ... Read More
The java.lang.Integer.compareTo() method compares two Integer objects numerically. This method returns the value 0 if this Integer is equal to the argument Integer, a value less than 0 if this Integer is numerically less than the argument Integer and a value greater than 0 if this Integer is numerically greater than the argument Integer.At first, set two Integer objects −Integer obj1 = new Integer("100"); Integer obj2 = new Integer("200");Now, compare those object −int res = obj1.compareTo(obj2);Following is an example to implement the compareTo() method in Java −Examplepublic class Main { public static void main(String[] args) { Integer obj1 ... Read More