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Articles by Krantik Chavan
Page 7 of 18
Roll a six-sided die 6000 times in Java
In order to roll a six sided die 6000 times in Java, we need to the nextInt() statement with decision making statements.The nextInt() method returns the next random integer value from this random number generator sequence.Declaration − The java.util.Random.nextInt() method is declared as follows −public int nextInt()Let us see a program to roll a six sided die 6000 times −Exampleimport java.util.Random; public class Example { public static void main(String args[]) { Random rd = new Random(); // random number generator int freq[] = new int[6]; // creating an array to compute frequency of ...
Read MoreList the Interfaces That a Class Implements in Java
The interfaces that are implemented by a class that is represented by an object can be determined using the java.lang.Class.getInterfaces() method. This method returns an array of all the interfaces that are implemented by the class.A program that demonstrates this is given as follows −Examplepackage Test; import java.lang.*; import java.util.*; public class Demo { public static void main(String[] args) { listInterfaces(String.class); } public static void listInterfaces(Class c) { System.out.println("The Class is: " + c.getName()); Class[] interfaces = c.getInterfaces(); System.out.println("The Interfaces are: " + Arrays.asList(interfaces)); ...
Read MoreGet the class name for various objects in Java
The getName() method is used to get the names of the entities such as interface, class, array class, void etc. that are represented by the class objects. These names are returned in the form of a string. The getPackage() method gets the package for the given class.A program that gets the class name for various objects is given as follows −Examplepackage Test; import java.io.IOException; import java.util.HashMap; public class Demo { public static void main(String args[]) throws IOException { Object obj = "string"; System.out.println("The class name is: " + obj.getClass().getName()); obj ...
Read MoreGet all declared fields from a class in Java
An array of field objects is returned by the method java.lang.Class.getDeclaredFields(). These field objects include the objects with the public, private, protected and default access but not the inherited fields.Also, the getDeclaredFields() method returns a zero length array if the class or interface has no declared fields or if a primitive type, array class or void is represented in the Class object.A program that demonstrates this is given as follows −Examplepackage Test; import java.lang.reflect.*; public class Demo { int i; char c; public Demo(int i, char c) { this.i = i; ...
Read MoreAdd a gray background color to the active link in a default Bootstrap navbar
To add gray background color to the active link, use the .active class in Bootstrap.You can try to run the following code to implement .active class −Example Bootstrap Example Website Home Tutorials Quiz Demo This is demo text.
Read MoreBootstrap table-condensed class
Using the .table-condensed class, row padding is cut in half to condense the table. as seen in the following example. This is useful if you want any denser information.You can try to run the following code to implement table-condensed class in Bootstrap −Example Bootstrap Table Footballer Rank Footballer Rank Country Messi 1 Argentina Neymar 2 Brazil Ronaldo 3 Portugal
Read MoreFade in tab with Bootstrap
Use the .in class in Bootstrap to fade in the tab.You can try to run the following code to fade in tab −Example Bootstrap Example Tutorials Website The following is our learning content: Home About Product Home This is demo text! About This is demo text! Product This is demo text!
Read MoreWhat is static import in Java?
As import statement allows to use a class without its package qualification, static import allows to access the static members of a class without class qualifications. For Example, to access the static methods you need to call the using class name − Math.sqrt(169); But, using static import you can access the static methods directly. Example import static java.lang.Math.*; public class Sample{ public static void main(String args[]){ System.out.println(sqrt(169)); } } Output 13.0
Read MoreJava program to sort string stream with reversed comparator
In this article, we will learn how to sort a stream of strings using a reversed comparator in Java. Java 8 introduced the Stream API, which allows powerful operations like sorting using custom comparators. Java Comparator A Comparator is a functional interface in Java that defines custom sorting logic. It compares two objects and returns a result based on the comparison. Java Stream A Stream is a sequence of elements that can be processed in parallel or sequentially, supporting methods like sorting, filtering, and mapping. Sorting string stream with a reversed comparator The following are the steps for sorting a ...
Read MoreJava program to disable the first item on a JComboBox
In this article, we will learn to disable the first item on a JComboBox using Java. This setup is useful for applications where you want to show a placeholder as the first item and prevent it from being chosen, so users must select a valid option. We will be using JComboBox. JComboBox class The JComboBox class in Java is a useful component that combines a dropdown list with a button or a text field. This lets users pick an option from the list or type their input if editing is allowed. It’s great for creating forms where users can choose ...
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