源代码
Process.Java：
package 组成原理;
public class Process {
public int id;
public int priority;
public int cputime;
public int alltime;
public int start=1;
public void setall(int a,int b,int c,int d)
{
id =a;
priority=b;
cputime=c;
alltime=d;
}
void runprocess(Process a)
{
if(a.alltime != 0)
{System.out .println("开始运行程序"+a.id);
System.out .println("priority-3");
a.priority=a.priority-3;
System.out .println("alltime-1");
a.alltime=alltime-1;
System.out .println("cputime+1");
a.cputime=cputime+1;
}
else {
a.start=0;
}
}
}
Test.java:
package 组成原理;
import java.util.Arrays;
import java.util.Scanner;
public class test {
public static void main(String[] args) {
// TODO Auto-generated method stub
Process []a=new Process [5];
for(int x=0;x<5;x++)
{
a[x]=new Process();
System.out .println(“请输入p”+x);
inputProcess(a[x]);
}
startrun(a);
}
static public void inputProcess(Process a)
{
Scanner in= new Scanner(System.in);
System.out .println("请输入id:");
int z1=in.nextInt();
System.out .println("请输入priority");
int z2=in.nextInt();
//a.priority=z2;
System.out .println(“请输入cputime”);
int z3=in.nextInt();
// a.cputime=z3;
System.out .println(“请输入alltime”);
int z4=in.nextInt();
//a.alltime=z4;
a.setall(z1, z2, z3, z4);
}
//bainjie
static void startrun(Process a[])
{int num=0;
int num1=0;
for (int i=0;i<a.length;i++)
{
if (a[i].priority>num1)
{num1=a[i].priority;
num =i;
}
}
if(a[num].start!=0)
{a[num].runprocess(a[num]);
}
else {
a[num]=a[a.length-1];
a = Arrays.copyOf(a, a.length-1);
}
if (a.length!=0)
{startrun(a);
}
else {
System .out .println("进程调度完毕");
}
}
}
运行结果：
