我已經編寫了一個代碼來從 ip 地址輸入中查找子網掩碼、廣播 ID 等。但是，我收到以下錯誤，并且代碼僅部分運行，沒有語法錯誤：linux@ubuntu:~/Desktop$ javac Subnet.javalinux@ubuntu:~/Desktop$ java SubnetEnter the ip address:138.101.114.250IP in Binary is10001010011001010111001011111010Enter the number of addresses:26Number of bits reqd for address=5the subnet mask is=27Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 3at Subnet.main(Subnet.java:31)linux@ubuntu:~/Desktop$ ^C這是代碼import java.util.Scanner;class Subnet{public static void main(String args[]){Scanner sc=new Scanner(System.in);System.out.print("Enter the ip address:");String ip=sc.nextLine();String split_ip[]=ip.split("\\.");String split_bip[]=new String[4];String bip="";for(int i=0;i<4;i++){split_bip[i]=appendZeros(Integer.toBinaryString(Integer.parseInt(split_ip[i])));bip+=split_bip[i];}System.out.println("IP in Binary is"+bip);System.out.print("Enter the number of addresses:");int n = sc.nextInt();int bits=(int)Math.ceil(Math.log(n)/Math.log(2));System.out.println("Number of bits reqd for address="+bits);int mask=32-bits;System.out.println("the subnet mask is="+mask);int fbip[]=new int[32];for (int i=0;i<32;i++)fbip[i]=(int)bip.charAt(i)-48;for(int i=31;i>31-bits;i--)fbip[i]&=0;String fip[]={"","",""};for(int i=0;i<32;i++)fip[i/8]=new String(fip[i/8]+fbip[i]);System.out.print("Subnet address is=");for(int i=0;i<4;i++){System.out.print(Integer.parseInt(fip[i],2));if(i!=3)System.out.print(".");}System.out.println();int lbip[]=new int[32];for(int i=0;i<32;i++)lbip[i]=(int)bip.charAt(i)-48;for(int i=31;i>31-bits;i--)lbip[i]|=1;String lip[]={"","",""};for(int i=0;i<32;i++)lip[i/8]=new String(lip[i/8]+lbip[i]);System.out.print("Broadcast address is=");for(int i=0;i<4;i++){System.out.print(Integer.parseInt(lip[i],2));if(i!=3)System.out.print(".");}System.out.println();}static String appendZeros(String s){String temp=new String("00000000");return temp.substring(s.length())+s;}}這只是一個非常小的錯誤，但我不知道在哪里。