1. Use the object to call the getClass method of Object
Method to obtain the bytecode object: To use this method, you must clarify the specific category and create the object.
public static void getClassObject_1() { Person p = new Person(); Class<?> clazz = p.getClass(); Person p1 = new Person(); Class<?> clazz1 = p1.getClass(); System.out.println(clazz == clazz1); }
2、Calling properties
Any data type has static properties. class can obtain the corresponding class object. Relatively simple, but explicitly use static members in the class.
public static void getClassObject_2() { Class<?> clazz = Person.class; Class<?> clazz1 = Person.class; System.out.println(clazz == clazz1);//true都是Person类的字节码 }
3. Using the forName() method
can be obtained by the string name of a given category, and can be more expanded. But it is done in Class class. This method is forName. This method only needs a name, which is more convenient and extensible.
public static void getClassObject_3() throws ClassNotFoundException { String className = "com.ldb.po.Person"; Class<?> clazz = Class.forName(className); System.out.println(clazz); }
The above is the detailed content of How to get objects using java reflection. For more information, please follow other related articles on the PHP Chinese website!

The article discusses using Maven and Gradle for Java project management, build automation, and dependency resolution, comparing their approaches and optimization strategies.

The article discusses creating and using custom Java libraries (JAR files) with proper versioning and dependency management, using tools like Maven and Gradle.

The article discusses implementing multi-level caching in Java using Caffeine and Guava Cache to enhance application performance. It covers setup, integration, and performance benefits, along with configuration and eviction policy management best pra

The article discusses using JPA for object-relational mapping with advanced features like caching and lazy loading. It covers setup, entity mapping, and best practices for optimizing performance while highlighting potential pitfalls.[159 characters]

Java's classloading involves loading, linking, and initializing classes using a hierarchical system with Bootstrap, Extension, and Application classloaders. The parent delegation model ensures core classes are loaded first, affecting custom class loa


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment