OJ Board

This code compiles fine under JDK 1.4 on Windows XP,
but give me a compiler error at ACM.
Why??



[java]import java.io.*;
import java.util.*;

class Main {
static String readLn (int maxLg) // utility function to read from stdin
{
byte lin[] = new byte [maxLg];
int lg = 0, car = -1;
String line = "";

try{
while (lg < maxLg){
car = System.in.read();
if(car == '\r') continue; //DOS-friendly
if ((car < 0) || (car == '\n')) break;
lin [lg++] += car;
}
}
catch (IOException e){
return (null);
}

if ((car < 0) && (lg == 0)) return (null); // eof
return (new String (lin, 0, lg));
}

static String[]accountNames;
static int[]transactionAccount;
static int[]transactionAmount;

public static void main(String[] args) throws Exception{
System.setIn(new FileInputStream(new File("p187.in")));
accountNames=new String[1000];
transactionAccount=new int[11];
transactionAmount=new int[11];
String account;
while(!(account=readLn(255)).startsWith("000")){
int accountNumber=Integer.parseInt(account.substring(0,3));
String accountName=account.substring(3,account.length());
accountNames[accountNumber] = accountName;
}
accountNames[999]=new String("Out Of Balance");
String transaction;
int lastTransaction = -1;
int index = 0;
int balance = 0;
while((transaction=readLn(255))!=null){
int transactionNumber=Integer.parseInt(transaction.substring(0,3));
if(transactionNumber==0)break;
int accountNumber=Integer.parseInt(transaction.substring(3,6));
String amount=transaction.substring(6,transaction.length());
amount=amount.trim();
int amountValue = Integer.parseInt(amount);

if(lastTransaction != transactionNumber && lastTransaction != -1){
if(balance != 0){
transactionAccount[index] = 999;
transactionAmount[index] = balance * (-1);
printExceptionReport(lastTransaction);
}
index = 0;
balance = 0;
}

transactionAccount[index]=accountNumber;
transactionAmount[index]=amountValue;
balance+=amountValue;
index++;
lastTransaction = transactionNumber;
}
}

public static void printExceptionReport(int transaction){
System.out.println("*** Transaction " + transaction + " is out of balance ***");
for(int i = 0; i<= transactionAccount.length; i++){
String account = "" + transactionAccount;
String Ljustified = leftJustify(accountNames[transactionAccount], 30);
String Rjustified = rightJustify(transactionAmount, 9);
System.out.println(account + " " + Ljustified + " " + Rjustified);
if(transactionAccount==999){
System.out.println();
break;
}
}
}

public static String rightJustify(int number, int fieldLength){

StringBuffer sb = new StringBuffer();
if(number==0){
sb.append("000");
}else{
sb.append(number);
}
if(number>0){
while(sb.length() < 3){
sb.insert(0,"0");
}
}else if(number <0){
while(sb.length() <4){
sb.insert(1,"0");
}
}

sb.insert(sb.length()-2, ".");
if(sb.length() < fieldLength){
int length = fieldLength - sb.length();
for(int i = 0; i<length;i++){
sb.insert(0," ");
}
}
return sb.toString();
}

public static String leftJustify(String text, int fieldLength){
StringBuffer sb = new StringBuffer();
sb.append(text);
if(sb.length() < fieldLength){
int length = fieldLength - sb.length();
for(int i = 0;i<length;i++){
sb.insert(sb.length()," ");
}
}
return sb.toString();
}
}
[/java]

hello there. opening files is not allowed by the online judge. all the input/output is done to the standard i/o device. so you better remove this line: best of luck.

I removed the line but get this reply:


Here are the compiler error messages:

gcj: Internal compiler error: program jc1 got fatal signal 11

Read the thread "Giving up on gcj" for some help. Basically, you should try creating an instance of your Main class and call methods on it:

...
public static void main(String args[])
{
Main m = new Main();
m.start();
}

private void start()
{
//implement all functionality here
}
...

This usually works but I don't know why