Server Side Programming Articles - Page 1720 of 2646

To find the IP Address of the client, the Java code is as follows −Example Live Demoimport java.net.*; import java.io.*; import java.util.*; import java.net.InetAddress; public class Demo{    public static void main(String args[]) throws Exception{       InetAddress my_localhost = InetAddress.getLocalHost();       System.out.println("The IP Address of client is : " + (my_localhost.getHostAddress()).trim());       String my_system_address = "";       try{          URL my_url = new URL("http://bot.whatismyipaddress.com");          BufferedReader my_br = new BufferedReader(new          InputStreamReader(my_url.openStream()));          my_system_address = my_br.readLine().trim();       }   ... Read More

You are given a String, your task is to write a program in Java that checks the order of its characters. If the order is previously defined, you have to check if the characters are in the given order otherwise check for alphabetical order. Let's understand the problem statement with an example − Example Scenario: Input: str = "abcmnqxz"; Output: res = TRUE The given string is in alphabetical order. Using Iteration In this approach, use a for loop to iterate over the string and check if the value of character at the current place and the previous ... Read More

In this article, we will learn to print common characters of two strings in alphabetical order using Java. The program uses arrays to count how often each letter appears in both strings and then compares these counts to identify the common characters. Problem Statement Write a Java program to print common characters of two strings in alphabetical order − Input my_str_1 = "itsasample" my_str_2 = "thisisasample" Output The common characters between the two strings in alphabetical order is :aaeilmpsst Steps to print common characters of two strings in alphabetical order Following are the steps to print common characters of two strings ... Read More

To find the second most repeated word in a sequence in Java, the code is as follows −Example Live Demoimport java.util.*; public class Demo{    static String second_repeated(Vector my_seq){       HashMap my_map = new HashMap(my_seq.size()){          @Override          public Integer get(Object key){             return containsKey(key) ? super.get(key) : 0;          }       };       for (int i = 0; i < my_seq.size(); i++)       my_map.put(my_seq.get(i), my_map.get(my_seq.get(i))+1);       int first_val = Integer.MIN_VALUE;       int sec_val ... Read More

To find the first repeated word in a string in Java, the code is as follows −Example Live Demoimport java.util.*; public class Demo{    static char repeat_first(char my_str[]){       HashSet my_hash = new HashSet();       for (int i=0; i

To find the uncommon values concatenated from both the strings in Java, the code is as follows −Example Live Demoimport java.util.*; import java.lang.*; import java.io.*; public class Demo{    public static String concat_str(String str_1, String str_2){       String result = "";       int i;       HashMap my_map = new HashMap();       for (i = 0; i < str_2.length(); i++)       my_map.put(str_2.charAt(i), 1);       for (i = 0; i < str_1.length(); i++)       if (!my_map.containsKey(str_1.charAt(i)))       result += str_1.charAt(i);       else       ... Read More

In this article, we will learn to display the Hostname and IP address using Java. To display the Hostname and IP address we will be using the InetAddress class from the java.net package. We’ll write a simple program to fetch and print this information, and perform the exception handling to catch the exception if the data isn't found. Problem Statement Write a program in Java to display the Hostname and IP address. Below is a demonstration of the same − Output  The IP address is : 127.0.0.1The host name is : jdoodle Steps to display Hostname and IP address Following are ... Read More

In this tutorial, we are going to write a program that flattens a list that contains sub-lists. Given number flatten the sublists until the given number index as parts. Let's see an example to understand it clearly.Inputlists = [[1, 2], [3, 4], [5, 6], [7, 8], [9, 10]] number = 2Output[[1, 2, 3, 4], [5, 6, 7, 8], [9, 10]]Let's see the steps to solve the problem.Initialize the list and number.Initialize an empty list.Iterate over the list with range(0, len(lists), number.Get the sublists using slicing lists[i:number].Iterate over the sublists and append the resultant list to the result list.Print the result.Example# ... Read More

In this tutorial, we are going to write a program that groups all the tuples from a list that have same element as a second element. Let's see an example to understand it clearly.Input[('Python', 'tutorialspoints'), ('Management', 'other'), ('Django', 'tutorialspoints'), ('React', 'tutorialspoints'), ('Social', 'other'), ('Business', 'other')]Output{'tutorialspoint': [('Python', 'tutorialspoints'), ('Django', 'tutorialspoints'), ('React', 'tutorialspoints')], 'other’: [('Management', 'other'), ('Social', 'other'), ('Business', 'other')]}We have to group the tuples from the list. Let's see the steps to solve the problem.Initiate a list with required tuples.Create an empty dictionary.Iterate through the list of tuples.Check if the second element of the tuple is already present in the dictionary ... Read More

Grayscaling an image includes converting a color image into a grayscale image. By using OpenCV library in various methods we can convert the color image with (multiple color channels) into a grayscale image (with a single channel). Some of the common methods for greyscaling an image using OpenCV are as follows. cv2.cvtColor(): This function is used to convert an image from one space color to another. Pixel ... Read More