java class forname

Java differs from other languages in that Java is run in Java Virtual Machines (JVMS). This means that the compiled code isA platform-independent format that is saved instead of running on a particular machine. This format and the traditional canThere are many important differences in the execution of code formats. Specifically, unlike a C or C + + program,

Java reflection mechanism: four methods for getting Class objects 1 package com. ljq. test;23 import java. lang. reflect. Field;4 import java. util. Currency;56 /**7 * four Java reflection methods for getting Class objects8 *9 * @

Java api ----- String class and StringBuffer class, stringbufferapi The String and StringBuffer classes are mainly used to process strings. These two classes provide processing methods for many strings. The String class is an unchangeable class, indicating that the String

example, all javax. * classes starting with JRE and classes stored in the ext directory of JRE). Application classloader is responsible for loading the classes of the application. When en to load the class? When Will JVM use classloader to load a class? When you use Java to execute a class, JVM uses Application cl

Why the anonymous intrinsic class parameter must be a final type:1) from the theory of the programming language: The local inner class (i.e., the inner class defined in the method ), because it is inside the method itself (can appear at the formal parameter definition or method body), thus accessing the method of the local variables (formal parameters or local va

Java property file properties common operation tool class, properties tool classFor the java. util. Properties class, we usually only need to achieve the following three learning objectives:1. Understand the properties file, understand its meaning, and create the properties file correctly.2. the

1. Object-Oriented Programming:The language of object-oriented programming is not only Java, but also:Simula 67 (the first object-oriented language, supports both single-inheritance and certain meanings of polymorphic and partial dynamic binding);Smalltalk (the first language that supports dynamic typing, supports single inheritance, polymorphism, and dynamic binding);EIFFEL (supports multi-inheritance, polymorphism and dynamic binding);C + + (most of

Beginner's knowledge of JAVA (2) ---- difference between the String class and the StringBuffer class, javastringbuffer There are two types of String operations in Java: String and StringBuffer (buffer String processing ).The following is a brief description of the differences between the two.Both the String

Tips"Effective Java, third Edition" an English version has been published, the second edition of this book presumably many people have read, known as one of the four major Java books, but the second edition of 2009 published, to now nearly 8 years, but with Java 6, 7, 8, and even 9 of the release, the Java language has

[Java class set] _ recognition class set and collection interface notes 3. Details Function of Class Set A class set is actually a dynamic array of objects. unlike an ordinary array of objects, the content of the class set o

?? We all know that in Java you can use an inner class to place the definition of a class inside the definition of another class, which is an inner class, but the anonymous inner class often makes us feel that it doesn't have a sp

Properties ClassImport Java.io.filereader;import java.util.enumeration;import java.util.properties;/* * Properties class, key-value pairs collection, is a subclass of Hashtable * but can only store string key value pairs */public class test07{public static void Main (string[] args) throws Exception { Test1 (); Test2 (); }//Properties basic usage public static void Test1 () {//Create a Prope