import?java.util.Random;
import?java.util.Scanner;


public?class?MM1?{???
????public?static?int?n=50000;//包數(shù)量
????public?static?void?main（String[]?args）?{?
????	Scanner?scan=new?Scanner（System.in）;
????	System.out.println（“請(qǐng)輸入服務(wù)時(shí)間均值：“）;
????	double?s=scan.nextDouble（）;//服務(wù)時(shí)間均值
????	System.out.println（“請(qǐng)輸入到達(dá)時(shí)間間隔時(shí)間均值：“）;
????	double?c=scan.nextDouble（）;//到達(dá)時(shí)間間隔均值
????	double[]?arrive_interval=new?double[n];
????	double[]?serve_time=new?double[n];
????????double[]?arrive=new?double[n];
????????double[]?leave=new?double[n];
????????double[]?wait=new?double[n];
????????Random?rand=new?Random（）;
????????
????????for（int?i=0;i????????	arrive[i]=rand.nextDouble（）;
????????for（int?i=0;i?????????????arrive_interval[i]=-1*c*Math.log（1-arrive[i]）;
????????for（int?i=0;i????????	arrive[i]=rand.nextDouble（）;
????????for（int?i=0;i????????	serve_time[i]=-1*s*Math.log（1-arrive[i]）;