jvm Java virtual machine 的相关内容

JVM(Java Virtual Machine)（下）

可达性分析🍂Java 中的对象是通过引用进行指向并访问的可达性分析, 就是将这些对象被组织的结构视为链式结构从起始位置出发, 遍历链能够被访问到的对象标记为"可达"反之即为"不可达"(将不可达的作为"垃圾"进行回收)举个栗子🌰class TreeNode { int val; TreeNode ...

JVM(Java Virtual Machine)（中）

初始化针对类对象的内容进行初始化执行代码块, 静态代码块, 加载父类…类加载的时机并非 Java 程序运行, 所有的类就会被加载而是真正用到该类, 才会被加载(懒汉模式)常见的类加载时机构造类的实例调用这个类的静态方法 / 静态成员变量加载子类之前, 需先加载其父类(加载过一次之后, 后续使用就不必...

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Java Spring Boot 2.6.0开发实战-1024程序员节创造营公益课

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JVM(Java Virtual Machine)（上）

🔎内存区域划分JVM 是一个应用程序在启动时, 会向操作系统申请内存空间根据不同的需求, 将空间分割成不同的部分, 每个部分的功能各不相同(类似于我们的房子, 根据不同的需求, 将房子的空间进行分割, 一部分成为了卧室, 一部分成为了厨房…)JVM 将内存区域划分为5个部分Native Metho...

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更新时间 2023-07-31 10:46:28

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