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1 parent e2097ab commit 5080e60Copy full SHA for 5080e60
03concurrency/0301/src/main/java/java0/conc0303/Homework03.java
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+package java0.conc0303;
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+
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+public class Homework03 {
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+ public static void main(String[] args) {
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+ // 在这里创建一个线程或线程池,
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+ // 异步执行 下面方法
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+ long start=System.currentTimeMillis();
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+ int result = sum(); //这是得到的返回值
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+ // 确保 拿到result 并输出
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+ System.out.println("异步计算结果为:"+result);
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+ System.out.println("使用时间:"+ (System.currentTimeMillis()-start) + " ms");
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+ // 然后退出main线程
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+ }
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+ private static int sum() {
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+ return fibo(36);
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+ private static int fibo(int a) {
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+ if ( a < 2)
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+ return 1;
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+ return fibo(a-1) + fibo(a-2);
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+}
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