Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Java Articles
Page 273 of 450
Java Program to Convert the LinkedList into an Array and vice versa
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 the specified index.Below is a demonstration of the same −Suppose our input is −The list is defined as: [Java, Python, Scala, Mysql]The desired output would be −The result array is: Java Python Scala MysqlAlgorithmStep 1 - START Step 2 - Declare namely Step 3 - Define the values. Step 4 ...
Read MoreJava Program to Print Boundary Elements of a Matrix
In this article, we will understand how to print boundary elements of a matrix. A matrix is representation of the elements in rows and columns. Boundary elements are those elements which are not surrounded by elements on all four directions. For example, the elements in the first row, first column, last row and last column.Below is a demonstration of the same −Suppose our input is −The input matrix: 9 8 9 8 8 7 8 7 7 6 7 6 6 5 6 5The desired output would be −The border elements of the matrix is: 9 8 9 8 8 ...
Read MoreJava Program to Replace the Spaces of a String with a Specific Character
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 fun to learn Input character: $The desired output would be −The string after replacing spaces with given character is: Java$Program$is$fun$to$learnAlgorithmStep 1 - START Step 2 - Declare a string namely input_string, a char namely input_character. Step 3 - Define the values. Step 4 - Using the function replace(), replace the ...
Read MoreJava Program to Remove a Sublist from a List
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 a demonstration of the same −Suppose our input is −Input list: [Java, Programming, Is, Fun]The desired output would be −The list after removing a sublist is: [Java, Programming]AlgorithmStep 1 - START Step 2 - Declare an AbstractList namely input_list. Step 3 - Add the values to the list. Step 4 ...
Read MoreJava Program to Create random strings
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 be −Random string: ink1n1dodvAlgorithmStep 1 - START Step 2 - Declare an integer namely string_size, a string namely alpha_numeric and an object of StringBuilder namely string_builder. Step 3 - Define the values. Step 4 - Iterate for 10 times usinf a for-loop, generate a random value using the function Math.random() ...
Read MoreJava Program to Sort a String
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 be −String after sorting is: [a, a, a, g, j, m, o, p, r, r, v]AlgorithmStep 1 - START Step 2 - Declare a string value namely input_string, a character array charArray, char value name temp and an int value namely string_size. Step 3 - Define the values. Step 4 ...
Read MoreJava Program To Find the Trace and Normal of a given Matrix
In this article, we will understand how to find the trace and normal of a given matrix. The normal of a matrix is the square root of the sum of squares of all the elements of a matrix. The trace of a matrix is the sum of all the elements present in the principal diagonal (upper left to lower right).Below is a demonstration of the same −Suppose our input is −The matrix is defined as: 2 3 4 5 2 3 4 6 9The desired output would be −Trace value: 13.0 Normal value: 14.142135623730951AlgorithmStep 1 - START Step 2 - ...
Read MoreJava Program to Interchange Elements of First and Last in a Matrix Across Rows
In this article, we will understand how to interchange elements of first and last in a matrix across rows. The matrix has a row and column arrangement of its elements. A matrix with m rows and n columns can be called as m × n matrix.Individual entries in the matrix are called element and can be represented by a[i][j] which suggests that the element a is present in the ith row and jth column.Below is a demonstration of the same −Suppose our input is −The matrix is defined as: 4 5 6 7 1 7 3 4 11 12 13 ...
Read MoreJava Program to Call One Constructor from another
In this article, we will understand how to call one constructor from another. The keyword 'this()' is used to invoke a constructor.Below is a demonstration of the same. We will displaying sum and product of two numbers while using this() −InputSuppose our input is −The numbers are defined as 12 and 30OutputThe desired output would be −The sum is: 42 The product is: 360AlgorithmStep 1 - START Step 2 - Declare an integer value namely my_sum Step 3 - In the main class, we define a ‘this’ reference to the numbers which would be used as input. Step 4 - This ...
Read MoreUsing XPATH to search text containing  
We can use the locator xpath to identify elements having search text with or spaces. Let us first examine the html code of a web element having trailing and leading spaces. In the below image, the text JAVA BASICS with tagname strong has spaces as reflected in the html code.If an element has spaces in its text or in the value of any attribute, then to create an xpath for such an element we have to use the normalize-space function. It removes all the trailing and leading spaces from the string. It also removes every new tab or lines ...
Read More