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【Java】先来先服务调度算法

作者:loveqi / 发布于2014/5/20/ 578


	package fifo;
	import java.util.*;
	public class FifoSchelduling {
	 double arriveTime;
	 double serviceTime;
	 double starttime;
	 double donetime;
	 double runTime;
	 double weightRunTime;
	 public FifoSchelduling(){
	 Map<String,Integer> map=new LinkedHashMap<String,Integer>();
	 //Insert A B C D default arrive time is 1,2,3;
	 System.out.println("******The FIFO Schelduling*****");
	 String string[] =new String[]{"A","B","C","D"};
	 map.put("A", 1);
	 map.put("B", 100);
	 map.put("C", 1);
	 map.put("D", 100);
	
	 char flag='A';
	 String temp="";
	 int time=0;
	 for(int i=0;i<4;i++){
	 if(i==0){
	 System.out.println(flag+" process:");
	 System.out.println("The "+(char)((int)flag+i)+" startTime is "+i);
	 System.out.println("doneTime is "+(i+(int)map.get((char)((int)flag+(i))+temp)));
	 System.out.println("runTime is "+((i+(int)map.get((char)((int)flag+(i))+temp))-i));
	 System.out.println("weightRunTime "+
	 ((i+(int)map.get((char)((int)flag+(i))+temp))-i)/(int)map.get((char)((int)flag+(i))+temp)+"\n");
	 }
	 else{
	 time=time+((int)(map.get((char)((int)flag+(i-1))+temp)));
	 System.out.println((char)(flag+i)+" Process:");
	 System.out.println("The "+(char)((int)flag+i)+" startTime is "+time);
	 System.out.println("doneTime is "+(time+(int)map.get((char)((int)flag+(i))+temp)));
	 System.out.println("runTime is "+((time+(int)map.get((char)((int)flag+(i))+temp))-i));
	 System.out.println("weigthRuntime "
	 +((time+(double)map.get((char)((double)flag+(i))+temp))-i)/(double)map.get((char)((double)flag+(i))+temp)+"\n");
	 }

	 }
	 }
	}

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　调度算法　

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.先来先服务调度算法