data_base.java

来自「Reader Writer Problem to solve synchroni」· Java 代码 · 共 36 行

import java.lang.*;
import java.io.*;

public class Data_base extends Object {

  private static int s,data;

  public Data_base(){
	this(1);
  }
  public Data_base(int i){
         s=i;
  }
  public void reset()
  {
	s=1;
  }

  public int readdb() {
//	System.out.println("Read Data: "+s);
	return s;
  }

  synchronized public void writedb(int dat) {
	s=dat;
//	System.out.println("Wrote Data: "+s);
    }

  synchronized public int Createdata(){
	data=(int) (Math.random() * 10);
	return data;
    }

}