To generated random integer, use the Random class with nextInt. At first, create a Random object −Random rand = new Random();The Random above is a random number generator. Now, pick the random numbers one by one. We want 10 random four-digit numbers, therefore loop it until i = 1 to ... Read More

Use the fromArray() method to create a Pair Tuple from Array.Let us first see what we need to work with JavaTuples. To work with Pair class in JavaTuples, you need to import the following package −import org.javatuples.Pair;Note − Steps to download and run JavaTuples program. If you are using Eclipse ... Read More

The tag evaluates an expression and displays its body content only if the expression evaluates to true.AttributeThe tag has the following attributes −AttributeDescriptionRequiredDefaulttestCondition to evaluateYesNonevarName of the variable to store the condition's resultNoNonescopeScope of the variable to store the condition's resultNopageExample ... Read More

The current date can be obtained from the system clock in the default time zone using the now() method in the LocalDate class in Java. This method requires no parameters and it returns the current date from the system clock in the default time zoneA program that demonstrates this is ... Read More

A binary tree is a tree data structure in which each node has at most two children, which are defined as left child and right child.AlgorithmBegin    function identical():        Take two nodes r1 and r2 as parameter.       If r1 and r2 is NULL then ... Read More

To generate random BigInteger in Java, let us first set a min and max value −BigInteger maxLimit = new BigInteger("5000000000000"); BigInteger minLimit = new BigInteger("25000000000");Now, subtract the min and max −BigInteger bigInteger = maxLimit.subtract(minLimit); Declare a Random object and find the length of the maxLimit: Random randNum = new Random(); ... Read More

JavaServer Pages (JSP) is a technology for developing Webpages that support dynamic content. This helps developers insert java code in HTML pages by making use of special JSP tags, most of which start with .A JavaServer Pages component is a type of Java servlet that is designed to fulfill the ... Read More

The tag is a commonly used tag because it iterates over a collection of objects. The tag is used to break a string into tokens and iterate through each of the tokens.AttributeThe tag has the following attributes −AttributeDescriptionRequiredDefaultitemsInformation to loop overNoNonebeginElement to start with (0 = first ... Read More

The LocalDate instance can be obtained from a string value using the parse() method in the LocalDate class in Java. This method requires a single parameter i.e. the string which is to be parsed. This string cannot be null. Also, it returns the LocalDate instance obtained from the string value ... Read More

To convert integer array list to float array, let us first create an integer array list −ArrayList < Integer > arrList = new ArrayList < Integer > (); arrList.add(25); arrList.add(50); arrList.add(100); arrList.add(200); arrList.add(300); arrList.add(400); arrList.add(500);Now, convert integer array list to float array. We have first set the size to the ... Read More