帮我看看好吗?为什么这个程序我总是不队??

Question

public class findState
{
String []State={"yancheng","yangzhou","beijing","shanghai"};
String inputString=new String();
char newChar;
boolean findout=false;
public  void recChar()  
{
newChar=(char)System.in.read();
while(newChar>='a'&&newChar<='z')
{
inputString=inputString+newChar;
newChar=(char)System.in.read();
}
}

public  void finding(String inString)
{
int i;
for(i=0;i<=State.length;i++)
{
if(inString.equals(State[i]))
findout=true;
}
}

} class findState_ex
{
//String recString=new String();
public static void main(String args[])
{
findState a=new findState();
    a.recChar();
a.finding(a.inputString);
if(a.findout)
            System.out.println("ok");
}
}

Answer 1

class findState
{
String []State={"yancheng","yangzhou","beijing","shanghai"};
String inputString=new String();
char newChar;
boolean findout=false;
public  void recChar()  
             throws IOException
{
newChar=(char)System.in.read();
while(newChar>='a'&&newChar<='z')
{
inputString=inputString+newChar;
newChar=(char)System.in.read();
}
}

public  void finding(String inString)
{
int i;
for(i=0;i<=State.length;i++)
{
if(inString.equals(State[i]))
findout=true;
}
}

} public class findState_ex
{
//String recString=new String();
public static void main(String args[])
                  throws IOException
{
findState a=new findState();
    a.recChar();
a.finding(a.inputString);
if(a.findout)
            System.out.println("ok");
}
}