Basic Java Knowledge

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I. Reserve Knowledge:

1. Memory structure analysis;

The 2.main method is a thread;

3.run () is the normal way to create threads, at which point the thread has not yet entered the ready state;

The role of the 4.start () method is to turn the process into a ready state;

5. There are two ways of creating a thread:

(1) Direct implementation of the Runnable interface, the interface only a run () method, run () write the method you want to execute;

(2) Inherit the thread class, rewrite the Run method, where the thread class has implemented the Runnablel interface;

In the actual programming is still proposed to implement the interface, because the class is a single inheritance, interface is multi-inheritance;

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When you look at the code, consider the location of the variable in memory:

1. Memory Analysis:

Basic Java Knowledge