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1. The program counter is the line number indicator of the bytecode executed by the current thread. 2. The Java virtual machine stack thread is private and has the same life cycle as the thread. Used to store information such as local variable tables, operand stacks, dynamic linked lists, method exits, etc. Local variable table storage content: basic data types (boolean, byte, char, short, int, float, long, double) object reference (different from symbol reference, symbol reference is stored in the constant pool) returnAddress type (points to a bytecode instruction The address of long and double type data with a length of 64 bits occupies 2 local variable spaces (slots), and the rest occupies 1 slot. Two exceptions: StackOverflowError: The stack depth requested by the thread > the depth allowed by the virtual machine OutOfMemoryError: Unable to apply for enough memory during dynamic expansion 3. The native method stack (Native Method Stack) is similar to the virtual machine stack, the difference is the Native Method Stack service For the Native method, the virtual machine stack service

1. Recommended articles about mysql returning the current thread

Introduction: 1. The program counter is the line number indicator of the bytecode executed by the current thread. 2. The Java virtual machine stack thread is private and has the same life cycle as the thread. Used to store information such as local variable tables, operand stacks, dynamic linked lists, method exits, etc. Local variable table storage content: basic data types (boolean, byte, char, short, int, float, long, double) object reference (different from symbol reference, symbol reference is stored in the constant pool) returnAddress type (points to a bytecode instruction Address) 64...

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Introduction: 1. Program Counter Line number indicator of the bytecode executed by the current thread. 2. The Java virtual machine stack thread is private and has the same life cycle as the thread. Used to store information such as local variable tables, operand stacks, dynamic linked lists, method exits, etc. Local variable table storage content: basic data types (boolean, byte, char, short, int, float, long, double) object reference (different from symbol reference, symbol reference is stored in the constant pool) returnAddress type (points to a bytecode instruction Address) 64...

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Introduction: Program counter Line number indicator of the bytecode executed by the current thread. 2. Java virtual machine stack is thread private and has the same life cycle as the thread. Used to store information such as local variable tables, operand stacks, dynamic linked lists, method exits, etc.

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