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这是我的代码，做所有的工作：异常线程“main” java.util.InputMismatchException：使用扫描仪
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import java.lang.*;
public class NFLStat extends JPanel
{
static int count = 0;
static QB[] qb;
static JButton button;
static String s, st, str, stri, strin, string, strings, stringst, stringstr, stringstri, stringstrin, stringstring, string1;
public NFLStat()
{
button = new JButton("QB");
button.addActionListener(new Listener());
add(button);
Scanner infile = null;
try
{
infile = new Scanner(new File("Players")).useDelimiter("#");
}
catch(FileNotFoundException e)
{
JOptionPane.showMessageDialog(null, "Error: File not found.");
System.exit(0);
}
while(infile.hasNext())
{
qb[count] = new QB(infile.next(), infile.next(), infile.next(), infile.nextInt(), infile.nextInt(), infile.nextInt(), infile.nextInt(), infile.nextInt(), infile.nextInt(), infile.nextDouble(), infile.nextInt(), infile.nextInt(), infile.nextDouble(), infile.nextInt(), infile.nextInt(), infile.nextInt());
count++;
}
}
public static class Listener implements ActionListener
{
public void actionPerformed (ActionEvent e)
{
JFrame frame = new JFrame("NFL Stats");
JPanel panel = new JPanel();
frame.add(panel);
frame.setSize(1000,400);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
for(int x = 0; x < count; x++)
{
s = Integer.toString(qb[x].getBye());
st = Integer.toString(qb[x].getPAtt());
str = Integer.toString(qb[x].getCmp());
stri = Integer.toString(qb[x].getPyd());
strin = Integer.toString(qb[x].getPtd());
string = Integer.toString(qb[x].getInter());
strings = Double.toString(qb[x].getRate());
stringst = Integer.toString(qb[x].getRAtt());
stringstr = Integer.toString(qb[x].getRyd());
stringstri = Double.toString(qb[x].getAvg());
stringstrin = Integer.toString(qb[x].getRtd());
stringstring = Integer.toString(qb[x].getFL());
string1 = Integer.toString(qb[x].getProj());
JLabel label = new JLabel(qb[x].getName() + "|" + qb[x].getTeam() + "|" + qb[x].getUpcoming() + "|" + s +"|" + st + "|" + str + "|" + stri +"|"+ strin + "|" + string +"|" + strings + "|" + stringst + "|" + stringstr + "|" + stringstri + "|" + stringstrin + "|" + stringstring + "|" + string1);
panel.add(label);
}
}
}
public static void main(String[] args) throws Exception
{
JFrame frame = new JFrame("NFL Stats");
frame.setSize(400,400);
frame.setLocation(200, 100);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(new NFLStat());
frame.setVisible(true);
}
}
这是我的QB类，所以我可以用它的文本文档：
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class QB
{
private String name;
private String team;
private String upcoming;
private int bye;
private int Patt;
private int cmp;
private int Pyd;
private int Ptd;
private int inter;
private double rate;
private int Ratt;
private int Ryd;
private int avg;
private int Rtd;
private int fl;
private int proj;
public QB()
{
name = "";
team = "";
upcoming = "";
bye = 0;
Patt = 0;
cmp = 0;
Pyd = 0;
Ptd = 0;
inter = 0;
rate = 0.0;
Ratt = 0;
Ryd = 0;
avg = 0;
Rtd = 0;
fl = 0;
proj = 0;
}
public QB(String n, String t, String u, int b, int p, int c, int y, int td, int i, double rat, int r, int yd, int a, int tdr, int f, int pro)
{
name =n;
team = t;
upcoming = u;
bye = b;
Patt = p;
cmp = c;
Pyd = y;
Ptd = td;
inter = i;
rate = rat;
Ratt = r;
Ryd = yd;
avg = a;
Rtd = tdr;
fl = f;
proj = pro;
}
//Get methods
public String getName()
{
return name;
}
public String getTeam()
{
return team;
}
public String getUpcoming()
{
return upcoming;
}
public int getBye()
{
return bye;
}
public int getPAtt()
{
return Patt;
}
public int getCmp()
{
return cmp;
}
public int getPyd()
{
return Pyd;
}
public int getPtd()
{
return Ptd;
}
public int getInter()
{
return inter;
}
public double getRate()
{
return rate;
}
public int getRAtt()
{
return Ratt;
}
public int getRyd()
{
return Ryd;
}
public int getAvg()
{
return avg;
}
public int getRtd()
{
return Rtd;
}
public int getFL()
{
return fl;
}
public int getProj()
{
return proj;
}
}
这是我的球员文本文档
Smith, Alex#KC#@Den#10#315#188#1919#9#4#81.4#53#265#5.0#1#0#145#Tannehill, Ryan#Mia#SD#6#331#202#2206#13#10#81.2#23#85#3.7#1#5#142#Bradford, Sam#STL#BYE#11#262#159#1687#14#4#90.9#15#31#2.1#0#1#142#
程序编译，但我不断收到这个错误，当我尝试运行它：
Exception in thread "main" java.lang.NullPointerException
at NFLStat.<init>(NFLStat.java:35)
at NFLStat.main(NFLStat.java:76)
有人可以帮我弄清楚有什么问题吗？
请标注NFLStat.java第35行的确切行。另外，要生硬;在任何情况下，'s'，'st'等都是可怕的变量名。改用'byeString'，'pattString'等。 –