2023-04-02 01:18:30
1. float f=3.4; Is it correct? 2. What is object-oriented thinking? 3. short s1 = 1; s1 = s1 + 1; Is there a mistake? short s1 = 1; s1 += 1; Is there a mistake? 4. The underlying comparison p...
2023-04-02 01:21:54
What is a JVM? What does it do? What are the root nodes in the reachability analysis algorithm? What is GC? Why should there be GC? How do I tune GC? How to troubleshoot high CPU and memo...
2023-04-02 01:24:10
Why use message queues? What are the advantages and disadvantages of using message queues? What are the differences among kafka, activemq, rabbitmq, and rocketmq? How do you ensure the hi...