Server Side Programming Articles - Page 1704 of 2646

In this problem, we are given a linked list. Our task is to create a function that will be able to count the number of times a given number occurs in the linked list.Let’s take an example to understand the problem, InputLinked list = 10-> 50 -> 10 -> 20 -> 100 -> 10, int = 10Output3Explaination − the number 10 occurs 3 times in the linked list.The solution to this problem is simple, just traverse the linked list and increment a counter the current node value is equal to the given number.The looping over the nodes of the linked ... Read More

In this problem, we have to create a function that will generate three numbers based on the given probability.For this, we will use the built-in random number generator function which is rand(a, b) which generates random numbers within the range [a, b] with equal probability.Our task is to return only three numbers A, B, C which have the probability of occurrence as P(A), P(B), P(C) respectively and according to definition of probability P(A) + P(B) + P(C) = 1.To create our function using rand(a, b). we will use its feature that the probability of occurrence of any number from a ... Read More

Here, we will create a function that will delete all elements of a linked list one by one.In c/c++, there is no specific function to perform this task but in java, the automatic garbage collection is done to ease deleting linked list.Now, let’s see the implementation of this program, Example Live Demo#include using namespace std; class Node{    public:    int data;    Node* next; }; void deleteLinkedList(Node** head_ref){    Node* current = *head_ref;    Node* next;    while (current != NULL){       coutnext = (*head_ref);    (*head_ref) = new_node; } int main(){    Node* head = NULL; ... Read More

Precondition to check if the list passed as parameter is empty or not. Let us see an example −Examplepublic void my_fun(List myList){    if (myList == null){       throw new IllegalArgumentException("List is null");    }    if (myList.isEmpty()){       throw new IllegalArgumentException("List is empty");    }    my_fun(myList); }A void function named ‘my_fun’ is defined that takes a list of objects as its parameters. If the list is null, it prints the relevant message. If the list has no elements in it, a specific message is displayed. The function is called by passing the list as ... Read More

In this article, we will learn to print a matrix in a "Z" pattern in Java. It starts from the top-left corner, moves horizontally across the top row, then diagonally down through the center, and finally across the bottom row. This pattern creates a "Z" shape with selected elements from the matrix. Problem Statement Write a program in Java to print a matrix in Z form. Input my_arr[][] = { { 34, 67, 89, 0}, { 0, 1, 0, 1 }, { 56, 99, 102, 21 }, {78, 61, 40, 99}} Output The matrix is34 67 89 0 0 99 ... Read More

In this article, we will learn how to generate and print all distinct permutations of a given string using Java. Permutations are rearrangements of characters in a string, and this program will ensure that no duplicate permutations are printed. The method works by checking each rearrangement and avoiding any repeats. Problem Statement Write a program in Java to print distinct permutations of a given string − Input my_str = "mnqm" Output The distinct permutations of the string are[mnqm, nmqm, nqmm, mqnm, qmnm, qnmm, mqmn, qmmn, mnmq, nmmq, mmnq, mmqn] Steps to print distinct permutations of a string Following are the ... Read More

Example Live Demopublic class Main{    static volatile boolean exit = false;    public static void main(String[] args){       System.out.println("Starting the main thread");       new Thread(){          public void run(){             System.out.println("Starting the inner thread");             while (!exit){             }             System.out.println("Exiting the inner thread");          }       }.start();       try{          Thread.sleep(100);       }       catch (InterruptedException e){   ... Read More

Joiner provides various methods to handle joining operations on string, objects, etc. Let us see an example −Exampleimport com.google.common.base.Joiner; import java.util.*; public class Demo{    public static void main(String[] args){       String[] my_arr = { "hel", null, "lo", "wo", "r", null, "ld" };       System.out.println("The original array is : "+ Arrays.toString(my_arr));       String my_result = Joiner.on('+').skipNulls().join(my_arr);       System.out.println("The joined string is : " + my_result);    } }OutputThe original array is [hel, null, lo, wo, r, null, ld] The joined string is hel+lo+wo+r+ldA class named Demo contains the main function, which defines ... Read More

To print single and multiple variables in Java, the code is as follows −Example Live Demopublic class Demo {    public static void main(String args[]){       String name_1 = "Hello";       String name_2 = "World";       System.out.println("Printing single variable");       System.out.printf("%s", name_1);       System.out.println("Printing multiple variables");       System.out.printf("First Name: %sLast Name: %s",name_1, name_2);    } }OutputPrinting single variable Hello Printing multiple variables First Name: Hello Last Name: WorldA class named Demo contains the main function, which defines two strings. These strings are displayed using the ‘println’ function and using the ‘printf’ function.

In this article, we will learn the LinkedHashMap and LinkedHashSet in Java. LinkedHashMap Hash table and linked list implementation of the Map interface, with predictable iteration order. Example Let us see an example − import java.util.*; public class Demo { public static void main(String args[]){ LinkedHashMap my_set; my_set = new LinkedHashMap(); my_set.put(67, "Joe"); my_set.put(90, "Dev"); my_set.put(null, "Nate"); my_set.put(68, "Sara"); ... Read More