如何将参数传递给线程[重复](How to pass an argument to a thread [duplicate])

如何将参数传递给线程[重复](How to pass an argument to a thread [duplicate])

这个问题在这里已经有了答案：

如何将参数传递给Java线程？ 16个答案

假设我想传递以下变量

String foo = "hello world";

作为以下线程的参数

new Thread(new Runnable() { @Override public void run() { // SOME CODE HERE REQUIRES VARIABLE } }).start();

有人可以解释一下如何做到这一点。

谢谢。

This question already has an answer here:

How can I pass a parameter to a Java Thread? 18 answers

Assume I would like to pass the following variable

String foo = "hello world";

as an argument to the following thread

new Thread(new Runnable() { @Override public void run() { // SOME CODE HERE REQUIRES VARIABLE } }).start();

Can someone please explain how to do this.

Thanks.

最满意答案

声明为final局部变量将在线程中可见：

void doSomething(final String foo) { new Thread(new Runnable() { @Override public void run() { // SOME CODE HERE REQUIRES VARIABLE System.out.println(foo); } }).start(); }

Local variables that are declared as final will be visible in the thread:

void doSomething(final String foo) { new Thread(new Runnable() { @Override public void run() { // SOME CODE HERE REQUIRES VARIABLE System.out.println(foo); } }).start(); }