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Difference Between charAt() and substring() Method in Java

Last Updated: 23 July 2025

In Java, the charAt() method of the String class is used to extract the character from a string. It returns the character at the specified index in the String. The substri...read more

Java Exercises - Basic to Advanced Java Practice Programs with Solutions

Last Updated: 24 April 2026

This Java exercise collection is designed to deepen your understanding of Java and refine your coding skills. The programs provide hands-on experience in solving real-worl...read more

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Java Runtime load() Method

Last Updated: 28 December 2023

In Java Programming Langauge the Runtime class mainly allows us to interact with the runtime environment of our application. There is one of the important method load() pr...read more

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Scoped Values in Java

Last Updated: 25 May 2026

Scoped Values in Java provide a safe and efficient way to share immutable data within a limited scope across methods and threads. They are especially useful in modern conc...read more

Java

Java-Functions

Java Method Parameters

Last Updated: 23 July 2025

Parameters are variables defined in the method declaration after the method name, inside the parentheses. This includes primitive types such as int, float, boolean, etc, a...read more

Java

Java-Functions

System.arraycopy() Method in Java with Examples

Last Updated: 24 May 2022

System class in Java is a part of the lang package and comes with many different fields and methods, and System.arraycopy() is among the 28 methods. It copies the source a...read more

Java

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Java FileReader Class ready() Method with Examples

Last Updated: 23 July 2025

Java FileReader class is used to read data from the data file. It returns the data in byte format as FileInputStream class. This is a character-oriented class that is used...read more

Java File Class toString() Method with Examples

Last Updated: 08 March 2022

This method returns the pathname string of the File object is returned by the function toString() function. This method is the same as calling the Java IO getPath() method...read more

Java FileReader Class read() Method with Examples

Last Updated: 16 February 2022

The read() method of FileReader class in Java is used to read and return a single character in the form of an integer value that contains the character's char value. The c...read more

Java FileReader Class close() Method with Examples

Last Updated: 16 February 2022

The close() method of FileReader class in Java is used to close the file reader. We can't utilize the reader to read data after the close() method is executed. This proced...read more

Java FileReader Class getEncoding() Method with Examples

Last Updated: 02 February 2022

The getEncoding() method of FileReader Class in Java is used to return the name of the current stream's character encoding. If the stream is utilizing a historical encodin...read more

Java File Class toURI() Method with Examples

Last Updated: 02 February 2022

The toURI() method returns the URI that corresponds to the supplied URL. This method works similarly to the new URI (this.toString()). This abstract pathname is represente...read more

Java File Class compareTo() Method with Examples

Last Updated: 02 February 2022

The compareTo() function compares two pathnames lexicographically. In Java, the method may be used to sort files. This type of activity is dependent on the system on which...read more

Java File Class equals() Method with Examples

Last Updated: 02 February 2022

The equals() method of Java File Class compares the pathname supplied in the argument to the pathname provided in the argument. If the parameter is not null and points to ...read more

Java PatternSyntaxException Class getDescription() Method with Examples

Last Updated: 23 July 2025

Java PatternSyntaxException Class is defined under the java.util.regex package and it focuses upon the unchecked exception that signifies syntax error in a regular express...read more

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