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java.text: Provides classes and interfaces for handling text, dates, numbers, and messages in a manner independent of natural languages. java.rmi: Provides the RMI package. java.time: The main API for dates, times, instants, and durations. java.beans: The java.beans package contains classes and interfaces related to JavaBeans components. java ...
Mathematics package: java.math provides mathematical expressions and evaluation, as well as arbitrary-precision decimal and integer number datatypes. Collections and Utilities : built-in Collection data structures, and utility classes, for regular expressions, concurrency, logging and data compression.
The following Java class does some simple computation. package basic_example ; import java.lang.Math ; public class MyComplexClass { public MyComplexClass (){ // the constructor } public long myVeryComplexComputation ( double a , double b ){ return Math . round ( Math . cos ( a ) + Math . sin ( b ) * 9 ); } }
Java: Class java.math.BigInteger (integer), java.math.BigDecimal Class (decimal) JavaScript: as of ES2020, BigInt is supported in most browsers; [2] the gwt-math library provides an interface to java.math.BigDecimal, and libraries such as DecimalJS, BigInt and Crunch support arbitrary-precision integers.
ojAlgo is an open source Java library for mathematics, linear algebra and optimisation. exp4j is a small Java library for evaluation of mathematical expressions. SuanShu is an open-source Java math library. It supports numerical analysis, statistics and optimization.
The java.io package contains classes that support input and output. The classes in the package are primarily stream-oriented; however, a class for random access files is also provided. The central classes in the package are InputStream and OutputStream, which are abstract base classes for reading from and writing to byte streams, respectively
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java.io A streamlined version of the java.io package found in the standard edition for doing Input/Output operations. java.lang Contains classes that are essential to the Java language. This package contains standard java types like Integers and Strings as well as basic exceptions, math functions, system functions, threading and security functions.