sequencemanager.java

来自「采用JAVA开发」· Java 代码 · 共 30 行

package com.gctech.cngphb.util;

/**
 * <p>Title: CNGP API</p>
 * <p>Description: 固网短信SP API</p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: GCTECH</p>
 * @author 王红宝
 * @version 1.0
 */

public class SequenceManager {
  static int seq;
  /**
   * 增长。
   * */
  public synchronized static int nextSeq(){
    seq++;
    //保证是正的
    if( seq == 0x7fffffff )
      seq = 1;
    return seq;
  }
  public static void main(String[] args){
    while ( true )
      System.out.println( Integer.toBinaryString(SequenceManager.nextSeq()));

  }

}