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66 posts

Delete a File Using Java

Last Updated: 10 January 2025

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

java-file-handling

When to use StringJoiner over StringBuilder?

Last Updated: 11 August 2021

Prerequisite: StringJoinerStringJoiner is very useful, when you need to join Strings in a Stream.Task : Suppose we want the string "[George:Sally:Fred]", where we have giv...read more

Java-String-Programs

Check if a File is Hidden in Java

Last Updated: 18 April 2022

isHidden() method of File class in Java can use be used to check if a file is hidden or not. This method returns a boolean value - true or false.Syntax:public static boole...read more

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java-file-handling

ProcessBuilder in Java to create a basic online Judge

Last Updated: 18 January 2023

We have discussed Process and Runtime to create an external process. In this post, ProcessBuilder is discussed which serves the same purpose.Let us understand an applicati...read more

Calling an External Program in Java using Process and Runtime

Last Updated: 09 August 2019

Java contains the functionality of initiating an external process - an executable file or an existing application on the system, such as Google Chrome or the Media Player-...read more

strictfp keyword in java

Last Updated: 21 March 2024

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 introduced in Java version 1.2. It...read more

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Java.io.DataInputStream class in Java | Set 2

Last Updated: 11 September 2023

Java.io.DataInputStream class in Java | Set 1 More Methods: byte readByte() : Reads and returns one input byte.Syntax:public final byte readByte() t...read more

Arrays.binarySearch() in Java with examples | Set 2 (Search in subarray)

Last Updated: 30 March 2023

Arrays.binarySearch()| Set 1 Covers how to find an element in a sorted array in Java. This set will cover "How to Search a key in an array within a given range including o...read more

Java-Collections

Java - util package

Character Class in Java - Methods | Set 2

Last Updated: 19 May 2025

In Java, the Character Classwraps the value of a primitive data typecharinto an object of datatype Character. This object contains a single field having the data typechar....read more

java.math class and its methods | Set 1

Last Updated: 06 October 2021

Math class provides mathematical functions to perform basic numeric operations such as exponential, logarithm, square root, and trigonometric functions. cosh, sin, tan, ab...read more

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Math class methods in Java with Examples | Set 2

Last Updated: 13 May 2022

java.math class and its methods | Set 1java.math class methods discussed in this article : abs() : java.math.abs() method returns the absolute ...read more

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java.lang.Character Class Methods | Set 1

Last Updated: 10 January 2025

java.lang.Character Class wraps the value of a primitive data type char to an object of datatype Character. This object contains a single field having the data type char. ...read more

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util.date class methods in Java with Examples

Last Updated: 08 September 2021

Following are some important date class methods : .toString() : java.util.Date.tostring() method is a java.util.Date class method.It displays ...read more

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Java - util package

java.util.Currency methods with example

Last Updated: 25 November 2016

This class represents currency. Here, currency is identified by their ISO 4217 currency codes. The purpose of ISO 4217 is to establish internationally recognized codes for...read more

Java.lang.Integer class and its methods

Last Updated: 11 March 2024

java.lang.Integer wraps integer data type to an object containing a single field having datatype is int.Constructors :Integer (int arg) : Constructs integer object represe...read more

Java-lang package