Month: April 2021

Learn Java by Example: Java Program to Delete Empty and Non-empty Directory

Hits: 5 Java Program to Delete Empty and Non-empty Directory In this example, we will learn to delete an empty directory, a non-empty directory, and a directory with non-empty subdirectory in Java.   Example 1: Java Program to delete an empty directory import java.io.File; class Main{ public static void main(String[] args){ try { // create …

Learn Java by Example: Java Program to Read the Content of a File Line by Line

Hits: 11 Java Program to Read the Content of a File Line by Line In this example, we will learn to read a the content of a file using various class in Java.   Example 1: Java Program to Read File Using BufferedInputStream import java.io.BufferedInputStream; import java.io.FileInputStream; class Main{ public static void main(String[] args){ try …

Learn Java by Example: Java Program to Load File as InputStream

Hits: 15 Java Program to Load File as InputStream In this example, we will learn to load a file as an input stream using the FileInputStream class in Java.   Example 1: Java Program to Load a Text File as InputStream import java.io.InputStream; import java.io.FileInputStream; public class Main{ public static void main(String args[]){ try { …

Learn Java by Example: Java Program to Convert a String into the InputStream

Hits: 1 Java Program to Convert a String into the InputStream In this program, we will learn to convert a string to an inputstream in Java.   Example: Java Program to convert String to InputStream import java.io.ByteArrayInputStream; import java.io.InputStream; import java.nio.charset.StandardCharsets; public class Main{ public static void main(String args[]){ // Creates a string String name …

Learn Java by Example: Java Program to Calculate the Execution Time of Methods

Hits: 6 Java Program to Calculate the Execution Time of Methods In this example, we will learn to calculate the execution time of normal methods and recursive methods in Java.   Example 1: Java Program to calculate the method execution time class Main{ // create a method public void display(){ System.out.println(“Calculating Method execution time:”); } …

Learn Java by Example: Java Program to pass lambda expression as a method argument

Hits: 5 Java Program to pass lambda expression as a method argument In this example, we will learn to pass lambda expression as the method argument in Java. Example 1: Define lambda expressions as method parameters import java.util.ArrayList; class Main{ public static void main(String[] args){ // create an ArrayList ArrayList<String> languages = new ArrayList<>(); // …

Learn Java by Example: Java Program to implement private constructors

Hits: 6 Java Program to implement private constructors In this example, we will learn to implement private constructors in Java.   Example 1: Java program to create a private constructor class Test{ // create private constructor private Test (){ System.out.println(“This is a private constructor.”); } // create a public static method public static void instanceMethod(){ …

Learn Java by Example: Java Program to Implement Binary Search Algorithm

Hits: 65 Java Program to Implement Binary Search Algorithm In this example, we will learn to implement binary search algorithm in Java.   Example: Java Program to Implement Binary Search Algorithm import java.util.Scanner; // Binary Search in Java class Main{ int binarySearch(int array[], int element, int low, int high){ // Repeat until the pointers low …

Learn Java by Example: Java Program to Implement Bubble Sort algorithm

Hits: 69 Java Program to Implement Bubble Sort algorithm In this example, we will learn to execute bubble sort algorithm in Java.   Example: Java Program to Implement Bubble Sort Algorithm // import the Class import java.util.Arrays; import java.util.Scanner; class Main{ // create an object of scanner // to take input from the user Scanner …