Java自动增量id [英] Java auto increment id

问题描述

我正在使用Java进行一些编码，但它不起作用：

I am doing some coding in Java, but it doesn't work:

public class job
{
   private static int count = 0; 
   private int jobID;
   private String name;
   private boolean isFilled;

   public Job(, String title, ){
      name = title;
      isFilled = false;
      jobID = ++count; 
  }
}

我需要在新的时候自动增加Id条目已创建。

I need to auto-increment the Id when a new entry is created.

推荐答案

试试这个：

Try this:

public class Job {
  private static final AtomicInteger count = new AtomicInteger(0); 
  private final int jobID;
  private final String name;

  private boolean isFilled;

  public Job(String title){
    name = title;
    isFilled = false;
    jobID = count.incrementAndGet(); 
}

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