线程“main”中的异常java.lang.ArrayIndexOutOfBoundsException帮助pease [英] Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException help pease

问题描述

import java.util.Scanner;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author sony
 */
public class CpuSh {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
            int [] p;

    Scanner sc=new Scanner(System.in);
    while (true){
    System.out.println("Menu");
    System.out.println("1.Getting BurstTime");
    System.out.println("2.FirstComeFirstServed");
    System.out.println("3.ShortestJobFirst");
    System.out.println("4.RoundRobin");
    System.out.println("5.Priority");
    System.out.println("6.Exit");
    System.out.println("Enter your choice");
    int choice=sc.nextInt();
    if (choice==6){
        break;
    }

    System.out.println("Enter the number of processes:");
    int n=sc.nextInt();
    int [] bt = new int[n];



    for(int i=1;i<=n;i++){
    System.out.println("Enter the burst time for process p"+i+"=");
    bt[i]=sc.nextInt();
    }
    if (choice==1){
    for(int i=1;i<=n;i++){
    System.out.println("the Burst time for process p"+i+" is "+ bt[i]);
    }
    }
   int wt[]=new int[n];
   wt[1]=0;

    if (choice==2){


    System.out.println("the wating time for first process p1 is "+wt[1]+" because of FIFS");
    for(int i=2;i<=n;i++){

    System.out.println("compute the watining time from process p"+i);
     wt[i]=bt[i-1]+wt[i-1];

    }
    int twt=0;
    int awt=0;
    for(int i=1;i<=n;i++){
        twt+=wt[i];
       awt=twt/n;
    }

System.out.println("the total waiting time is"+twt);
 System.out.println("the average weighting time is"+awt);
    }
    }
    }


}

问题



for（int i = 2; i& lt; = n; i ++）{



System.out.println（& quot;计算来自流程p& quot; + i的观察时间）;

wt [i] = bt [i-1] + wt [i -1];



}





这里也是

for（int i = 1; i& lt; = n; i ++）{

System.out.println（& quot;输入流程p& quot的突发时间） ; + i +& quot; =& quot;）;

bt [i] = sc.nextInt（）;

}

the problem in

for(int i=2;i<=n;i++){

System.out.println("compute the watining time from process p"+i);
wt[i]=bt[i-1]+wt[i-1];

}


and here too
for(int i=1;i<=n;i++){
System.out.println("Enter the burst time for process p"+i+"=");
bt[i]=sc.nextInt();
}

推荐答案

for(int i=2;i<=n;i++){

应该是

should be

for(int i = 2; i < n; i++){

数组从 0 计算到（n - 1），其中 n 是元素的数量。

arrays are counted from 0 to (n - 1), where n is the number of elements.

这篇关于线程“main”中的异常java.lang.ArrayIndexOutOfBoundsException帮助pease的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！