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Java Exercises - Basic to Advanced Java Practice Programs with Solutions

Last Updated: 02 January 2025

Looking for Java exercises to test your Java skills, then explore our topic-wise Java practice exercises? Here you will get 25 plus practic...read more

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Last Updated: 12 October 2018

The nextDouble() method of java.util.Scanner class scans the next token of the input as a Double. If the translation is successful, the scan ...read more

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The nextLine() method of java.util.Scanner class advances this scanner past the current line and returns the input that was skipped. This fu ...read more

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Java 8 Streams | Collectors.joining() method with Examples

Last Updated: 17 January 2023

The joining() method of Collectors Class, in Java, is used to join various elements of a character or string array into a single string obje ...read more

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Java floor() method with Examples

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The java.lang.Math.floor() returns the double value that is less than or equal to the argument and is equal to the nearest mathematical inte ...read more

Java ceil() method with Examples

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The java.lang.Math.ceil() returns the double value that is greater than or equal to the argument and is equal to the nearest mathematical in ...read more

static Keyword in Java

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The static keyword in Java is mainly used for memory management. The static keyword in Java is used to share the same variable or method of ...read more

Random vs Secure Random numbers in Java

Last Updated: 10 November 2022

Prerequisite: Generating Random numbers in Javajava.security.SecureRandom class:This class provides a cryptographically strong random number ...read more

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Moving a file from one directory to another using Java

Last Updated: 21 October 2021

Java provides functions to move files between directories. Two ways to achieve this are described here. The first method utilizes Files pack ...read more

Delete a File Using Java

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Java provides methods to delete files programmatically. In contrast to normal delete operations in any operating system, files being deleted ...read more

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In Java, the strictfp is a modifier that stands for strict floating-point which was not introduced in the base version of Java as it was int...read more

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java.util.Collections.singleton() method is a java.util.Collections class method. It creates a immutable set over a single specified element ...read more

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StringTokenizer class in Java is used to break a string into tokens. One must go through StringTokenizer class where concepts and constructo ...read more

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StringTokenizer classin Java is used to break a string into tokens based on delimiters. A StringTokenizer object internally maintains a curr...read more