Programming Articles - Page 1856 of 3366

In Java, checking if a string contains special characters can be easily done using regular expressions. We will be using the Pattern and Matcher classes from the java.util.regex package, we can efficiently determine whether a string includes any special characters. In this article, we will demonstrate how to use these classes to perform the check and handle the result accordingly. − Problem Statement For a given string write a Java program to check if it contains any special character or not − Input 1 I Love Tutorialspoint Output 1 Special character not found in the string Input 2 ... Read More

Following is the Java program for Stooge sort −Example Live Demoimport java.io.*; public class Demo {    static void stooge_sort(int my_arr[], int l_val, int h_val){       if (l_val >= h_val)       return;       if (my_arr[l_val] > my_arr[h_val]){          int temp = my_arr[l_val];          my_arr[l_val] = my_arr[h_val];          my_arr[h_val] = temp;       }       if (h_val-l_val+1 > 2){          int temp = (h_val-l_val+1) / 3;          stooge_sort(my_arr, l_val, h_val-temp);          stooge_sort(my_arr, l_val+temp, h_val);   ... Read More

To find the sum of such series, the Java program is as follows −Example Live Demopublic class Demo {    static long my_val = 1000000007;    public static long compute_val(long my_int){       return ((my_int % my_val) * (my_int % my_val)) % my_val;    }    public static void main(String[] args){       long my_int = 45687234;       System.out.println("The computed value is ");       System.out.print(compute_val(my_int));    } }OutputThe computed value is 335959495A class named Demo defines a function named ‘compute_val’ that computes and returns the sum of a specific series. In the main function, the ... Read More

To search a string in Matrix using split function, the code is as follows −Example Live Demoimport java.util.*; public class Demo {    public static int search_string(String[] my_matrix, String search_string){       for (String input : my_matrix){          String[] my_value = input.split(search_string);          if (my_value.length >= 2 || my_value.length == 0){             return 1;          }          else if (my_value.length == 1 && input.length() != my_value[0].length()){             return 1;          }       } ... Read More

JavaJava is an object oriented programming language as well as a computing platform.It is safe, quick and reliable.The code in Java is first converted into bytecode and then executed using a JVM (Java Virtual Machine).The java program that is converted into bytecode is stored with the help of the extension ‘.class’.Java doesn’t give any specific way in which associative arrays could be stored, instead there are implementations of various hash functions.Java programs that need to be run are stored with the extension ‘.java’.Java is a statically typed language, i.e type checking is performed during compile-time (not run-time).Single line comments in ... Read More

In general, 10 packages are imported using the JShell.The following command shows the packages that were imported by default.jshell> /importOutputimport java.io.* import java.math.* import java.net.* import java.nio.file* import java.sql.* import java.util.* import java.util.regex* import java.util.function* import java.util.prefs* import java.util.stream.*Importing a specific package using JShelljshell> import java.util.*;

There are ambiguities while using variable arguments in Java. This happens because two methods can definitely be valid enough to be called by data values. Due to this, the compiler doesn’t have the knowledge as to which method to call.Example Live Demopublic class Demo {    static void my_fun(double ... my_Val){       System.out.print("fun(double ...): " + "Number of args: " + my_Val.length );       for(double x : my_Val)       System.out.print(x + " ");       System.out.println();    }    static void my_fun(boolean ... my_Val){       System.out.print("fun(boolean ...) " + "The number of ... Read More

To input multiple values from user in one line, the code is as follows −Example Live Demoimport java.util.Scanner; public class Demo {    public static void main(String[] args) {       System.out.print("Enter two floating point values : ");       Scanner my_scan = new Scanner(System.in);       double double_val = my_scan.nextFloat();       int int_val = my_scan.nextInt();       System.out.println("The floating point value is : " + double_val + " and the integer value is : "       + int_val);    } }Input56.789 99OutputEnter two floating point values : The floating point value is ... Read More

The ‘interrupt’ function can be used in Java to interrupt the execution of a thread with the help of the exception InterruptedException.The below example shows how the currently executing thread stops execution (because of a new exception raised in the catch block) once it is interrupted −Example Live Demopublic class Demo extends Thread {    public void run()    {       try       {          Thread.sleep(150);          System.out.println("In the 'run' function inside try block");       }       catch (InterruptedException e)       {       ... Read More

To get sum of list with stream filter in Java, the code is as follows −Example Live Demoimport java.util.*; public class Demo {    public static void main(String[] args)    {       List my_list = new ArrayList();       my_list.add(11);       my_list.add(35);       my_list.add(56);       my_list.add(78);       my_list.add(91);       System.out.println(sum(my_list));    }    public static int sum(List my_list)    {       System.out.println("In the main function, the sum of list with filter is ");       return my_list.stream().filter(i -> i > 5).mapToInt(i -> i).sum();    } ... Read More