java实现osFIFO页面置换算法

以下是Java实现OS FIFO页面置换算法的示例代码：

import java.util.*;

public class OSFIFO {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("请输入页面数：");
        int pageNum = sc.nextInt();
        System.out.print("请输入物理块数：");
        int blockNum = sc.nextInt();
        int[] pages = new int[pageNum];
        System.out.print("请输入页面序列：");
        for (int i = 0; i < pageNum; i++) {
            pages[i] = sc.nextInt();
        }
        int[] blocks = new int[blockNum];
        int count = 0;
        for (int i = 0; i < pageNum; i++) {
            boolean flag = false;
            for (int j = 0; j < blockNum; j++) {
                if (blocks[j] == pages[i]) {
                    flag = true;
                    break;
                }
            }
            if (!flag) {
                blocks[count % blockNum] = pages[i];
                count++;
            }
            System.out.print("第" + (i + 1) + "次页面置换后的物理块状态：");
            for (int j = 0; j < blockNum; j++) {
                System.out.print(blocks[j] + " ");
            }
            System.out.println();
        }
    }
}