In this article, we will understand how to convert the linked list into an array and vice versa. The java.util.LinkedList class operations perform we can expect for a doubly-linked list. Operations that index into the list will traverse the list from the beginning or the end, whichever is closer to ... Read More

In this article, we will understand how to merge two lists. A list is an ordered collection that allows us to store and access elements sequentially. It contains the index-based methods to insert, update, delete and search the elements. It can also have the duplicate elements.Below is a demonstration of ... Read More

In this article, we will understand how to implement switch statement on strings. The switch expression is evaluated once. The value of the expression is compared with the values of each case. String is a datatype that contains one or more characters and is enclosed in double quotes(“ ”).Below is ... Read More

In this article, we will understand how to replace the spaces of a string with a specific character. String is a datatype that contains one or more characters and is enclosed in double quotes(“ ”).Below is a demonstration of the same −Suppose our input is −Input string: Java Program is ... Read More

In this article, we will understand how to join two lists. The ArrayList class extends AbstractList and implements the List interface. ArrayList supports dynamic arrays that can grow as needed.Array lists are created with an initial size. When this size is exceeded, the collection is automatically enlarged. When objects are ... Read More

In this article, we will understand how to remove a sub-list from a list. A list is an ordered collection that allows us to store and access elements sequentially. It contains the index-based methods to insert, update, delete and search the elements. It can also have the duplicate elements.Below is ... Read More

In this article, we will understand how to create random strings. String is a datatype that contains one or more characters and is enclosed in double quotes(“ ”).Below is a demonstration of the same −Suppose our input is −The size of the string is defined as: 10The desired output would ... Read More

In this article, we will understand how to splitting into a number of sub-strings. String is a datatype that contains one or more characters and is enclosed in double quotes(“ ”). A part or a subset of string is called substring.Below is a demonstration of the same −Suppose our input ... Read More

In this article, we will understand how to determine the unicode code point at a given index. Each character is represented by a unicode code point. A code point is an integer value that uniquely identifies the given character. Unicode characters can be encoded using different encodings, like UTF-8 or ... Read More

In this article, we will understand how to sort a string. String is a datatype that contains one or more characters and is enclosed in double quotes(“ ”). Strings are a sequence of charactersBelow is a demonstration of the same −Suppose our input is −Input string: javaprogramThe desired output would ... Read More