Singly linked list Examples in Java17 Mar 2025 | 1 min read
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In this program, we need to find the most repeated word present in given text file. This can be done by opening a file in read mode using file pointer. Read the file line by line. Split a line at a time and store in...
4 min read
Trees are the non-linear data structure that stores data hierarchically. The tree is a collection of elements called nodes. Nodes are connected through edges and contain data. The first node of the tree is called Root. Each node may or may not have children node....
5 min read
In this program, all the subsets of the string need to be printed. The subset of a string is the character or the group of characters that are present inside the string. All the possible subsets for a string will be n(n+1)/2. For example, all possible subsets...
2 min read
In this section, we will write the Java programs to check if a number is positive or negative. We have used the following ways to check the number is positive, negative, or zero. Using Relational Operator Using Math.signum() Method Using Integer.signum() Method Using Bit Shift Operator Using ArrayList class Using Relational Operator To...
5 min read
The object is a basic building block of an OOPs language. In Java, we cannot execute any program without creating an object. There is various way to create an object in Java that we will discuss in this section, and also learn how to create...
7 min read
The spiral pattern (or matrix in spiral form) is frequently asked in Java interviews and academics. In this section, we will create a Java program to create a spiral pattern or spiral matrix. What is Spiral Matrix or Spiral Pattern? A spiral pattern is a number pattern...
7 min read
In this program, we need to remove the duplicate nodes from the given singly linked list. Original List: List after removing duplicate nodes: In the above list, node 2 is repeated thrice, and node 1 is repeated twice. Node current will point to head, and index will point...
7 min read
In this program, we will create a doubly linked list and sort nodes of the list in ascending order. Original List: Sorted List: To accomplish this, we maintain two pointers: current and index. Initially, current point to head node and index will point to node to current....
7 min read
Program to left rotate the elements of an array In this program, we need to rotate the elements of an array towards the left by the specified number of times. In the left rotation, each element of the array will be shifted to its left by...
3 min read
In this program, we create a circular linked list, then traverse the list in the reverse order and print the nodes. Algorithm Define a Node class which represents a node in the list. It has two properties data and which will point to the node. Define...
7 min read
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