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Programming Articles
Page 1699 of 2547
Java program to set title position
In this article, you'll learn how to position the title of a border in a Java Swing application using the setTitlePosition() method. We'll position the title above the border's top line by utilizing the TitledBorder.ABOVE_TOP constant. This technique is useful for customizing the appearance of your Swing components. To set title position, use the setTitlePosition() method in Java. Let’s say we have to position the title above the border's top line. For that, use the constant ABOVE_TOP for the border − setTitlePosition(TitledBorder.ABOVE_TOP); Steps to set title position Following are the steps to set title position in Java − ...
Read MoreJava sql.Time toString() method with example
In this article, you'll learn how to convert a Time object into a String using the toString() method from the java.sql.Time class. This method allows us to easily transform a Time object into its JDBC escape format, which can then be handled as a string. //Retrieving the Time object Time timeObj = rs.getTime("DeliveryTime"); //Converting the Time object to String format String time = timeObj.toString(); Steps for using Java sql.Time toString() Method Following are the steps for using Java sql.Time toString() Method − Create a MySQL table named dispatches. Insert some sample records into ...
Read MoreJava program to count set bits in an integer
In this article, we are given an integer value and the task is to count the total number of set bits of the given integer. For this task, we need to convert the given value into its corresponding binary representation. The binary number of an integer value is represented as the combination of 0's and 1's. Here, the digit 1 is known as the Set bit in the terms of the computer. Problem Statement Write a program in Java to count set bits in an integer − Input int num = 10 Output binary representation = 1010 set bit ...
Read MoreJava Program to initialize a HashMap with Lambda Expressions
Initialization of a Java HashMap means creating an instance of the HashMap class and adding elements to it. The standard way to initialize a HashMap is by using the new keyword. However, we will use the lambda expression in this article. Lambda expressions are methods without any names. It was introduced with the release of Java8. And, HashMap is a class of Java Collection Framework that implements Map Interface. It stores its element in key-value pairs. The Key is an object that is used to retrieve value associated with it. Example 1 The following Java program explains how to initialize ...
Read MoreJava Program to Print the Months in Different Formats
In this article, we are going to use various approaches for formatting the months using different libraries of Java programming language. There are several ways to display months. Sometimes the months are written as numbers, sometimes the months are written in long form or they are written in short forms. Using java.time.Month In this approach, the months are printed by specifying the month number that starts from the number 1. For instance -> Month.of(1) will give JANUARY. Example In this Java program, we are printing all 12 months name. import java.time.Month; public class ShowMonth { ...
Read MoreJava Program to check if the String contains only certain characters
For a given string, say "str", write a Java program to check if it contains each character from a specified character array. If it contains print "found" otherwise "not found". A String in Java is a class that represents a contiguous block of characters. Example Scenario: Input 1: String str = "pqrst"; Input 2: char[] chSearch = {'p', 'q', r'}; Output: res = Character p, q and r found in given string In the string "pqrst", we are searching for the character set {'p', 'q', r'}. Using Iteration Here, use for loop to iterate till the length of the ...
Read MoreJAVA Program to Replace Each Element of Array with its Next Element
As per the problem statement we have to write a Java program to replace each element of the array with its next element. In Java, the array is an object. It is a non-primitive data type which stores values of similar data types. Before discussing the solution for the given problem, let's understand the problem statement with an example − Example Scenario: Input: arr[] = {12, 23, 11, 64} Output: updated array = {23, 11, 64, 12} Algorithm Follow the steps below to replace each element of the array with its next element − Step 1 − Declare ...
Read MoreJava Substring Comparisons
Given a string and its substring(s) of length k, write a Java program to compare and find whether the substrings are equal or not. Substring is a small portion of characters from a large string. In Java, a String is a class that represents a contiguous block of characters. Using compareTo() Method The compareTo() method belongs to the String class of java.lang package. It compares two strings based on the Unicode value of each character contained in the strings. It returns 0 if the specified strings are equal. Example In this example, we are using the compareTo() method to ...
Read MoreStatic blocks in Java with example
A block of code that is associated with the static keyword is called as static block. This block executes when classloader loads the class. Remember, if your code contains any static block, it will be invoked before the main() method. In this article, we will learn how to create and invoke static blocks in Java along with its use case. But, before that let's understand the static keyword. What is Static Keyword? The static keyword in Java is a non-access modifier. This keyword is used with variables, methods, blocks of code and classes. A class, method or variable declared with ...
Read MoreJava Program to Illustrate Escaping Characters in Regex
The special characters, also known as metacharacters, in Java Regex holds a specific meaning within the regex syntax and must be escaped if you want to use them as regular characters. Here, we will demonstrate escaping characters in Regex through Java Program. But, before diving deep into the topic, let us get familiar with the term Regex in Java. What is Regex? It is an acronym for a Regular expression. It is an API that offers users to define String patterns that are useful for finding, modifying, and editing strings. A couple of areas of strings where Regex is ...
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