Java reflection call static method12/22/2023 ![]() A static method does not have access to instance variables. Because no objects are accessible when the static method is used. It can be represented as thodName (arguments). The class name followed by the method name and passing the argument is enough for accessing any instance of the class. The JVM runs the static method first, followed by the creation of class instances. The static method in java is a method which resides in the class and can be accessed even if no object is created or say there is no instantiation done. The section also contains a brief explanation of array macro variants to leverage primitive types ( int, boolean, byte and so on). Syntax to call a static method: thodName() Example 1: The static method does not have access to the instance variable. Macros like aset, amap or areduce are useful to transform the content of the array. make-array is just one of the many ways to create an array from Clojure. Clojure also has a rich set of functions to deal with Java arrays. ![]() The functions in the clojure.reflect namespace perform introspection on the structure and content of Java classes.bean is a macro that wraps Java objects in map-like interfaces.ex-info and ex-data builds on top of Java exception mechanism by hiding some of the low level syntax and offering a mechanism to transport data with exceptions.We can call a method by using the following: methodname () //non static method calling. The method definition consists of a method header and method body. try and catch (and related special forms finally and throw) are the fundamental mechanism for exception handling in Clojure. A method must be created in the class with the name of the method, followed by parentheses ().new creates a new instance of an object.double-dot "." is useful to assemble chained calls while " doto" concatenates side-effecting calls instead. dot "." is a versatile special form to access Java methods and attributes.The following is a summary of what is described in the chapter: Clojure still offers a functional view over Java’s mutable world offering a syntax that is concise and readable. The functions and macros in this chapter are predominantly related to Java interoperation, the part of the standard library that sits closer to the Java runtime.
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