ThinkerQAQ

Java

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  1. Java 8 New Featureshistorical

    Java 8 features and a groupingBy example that converts a List into Map<String, List>.

    Java8
  2. Comparehistorical

    1. What Compare is 2. Usage 3. References

    Compare
  3. Estimating Thread Pool Sizehistorical

    1. Estimate the number of threads 1.1. Throughput = concurrency / response time 1.2. TPS estimation 1.3. I/O-intensive or CPU-intensive 1.4. Dark Magic 2. References

    JUC / 14.ThreadPool
  4. Multithreaded Folder Size Statisticshistorical

    Start three threads to calculate separately; use the final thread to aggregate the result.

    JUC / 例子