如果我启动我的代码，它总是会生成异常。
package wrs;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.Random;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class mainWRS{
static ArrayList<String> al1 = new ArrayList<String>();
static JFrame frame1 = new JFrame("Game");
static JPanel panel1 = new JPanel();
static JLabel label1 = new JLabel();
static JButton buttona = new JButton("a");
static JButton buttonb = new JButton("b");
static JButton buttonc = new JButton("c");
static JButton buttond = new JButton("d");
static JButton buttone = new JButton("e");
static JButton buttonf = new JButton("f");
static JButton buttong = new JButton("g");
static JButton buttonh = new JButton("h");
static JButton buttoni = new JButton("i");
static JButton buttonj = new JButton("j");
static JButton buttonk = new JButton("k");
static JButton buttonl = new JButton("l");
static JButton buttonm = new JButton("m");
static JButton buttonn = new JButton("n");
static JButton buttono = new JButton("o");
static JButton buttonp = new JButton("p");
static JButton buttonq = new JButton("q");
static JButton buttonr = new JButton("r");
static JButton buttons = new JButton("s");
static JButton buttont = new JButton("t");
static JButton buttonu = new JButton("u");
static JButton buttonv = new JButton("v");
static JButton buttonw = new JButton("w");
static JButton buttonx = new JButton("x");
static JButton buttony = new JButton("y");
static JButton buttonz = new JButton("z");
static Random rand = new Random();
static boolean end = false;
static String Word = "";
static mainWRS helper = new mainWRS();
static ArrayList<Integer> lp = new ArrayList<Integer>();
static ArrayList<String> used = new ArrayList<String>();
static char[] cw,cdisp;
static File file = new File("C:\Users\Jan\Desktop\eTest.txt");
static FileReader fr = new FileReader(file);
static BufferedReader br = new BufferedReader(fr);
public static void main(String[]args){ // <-- line 70
setup();
}
private static void setup() {
frame1.setSize(500, 500);
frame1.getContentPane().setBackground(Color.decode("#00FF00"));
frame1.setLocation(0, 0);
frame1.setVisible(true);
frame1.setResizable(false);
panel1.setLayout(null);
panel1.setBackground(Color.decode("#00FF00"));
label1.setSize(480, 50);
label1.setLocation(10, 175);
label1.setForeground(Color.BLACK);
label1.setFont(label1.getFont().deriveFont(18f));
int bpx = 5;
int bpy = 220;
buttona.setSize(50,50);
buttona.setLocation(bpx, bpy);
bpx += 55;
buttonb.setSize(50,50);
buttonb.setLocation(bpx, bpy);
bpx += 55;
buttonc.setSize(50,50);
buttonc.setLocation(bpx, bpy);
bpx += 55;
buttond.setSize(50,50);
buttond.setLocation(bpx, bpy);
bpx += 55;
buttone.setSize(50,50);
buttone.setLocation(bpx, bpy);
bpx += 55;
buttonf.setSize(50,50);
buttonf.setLocation(bpx, bpy);
bpx += 55;
buttong.setSize(50,50);
buttong.setLocation(bpx, bpy);
bpx += 55;
buttonh.setSize(50,50);
buttonh.setLocation(bpx, bpy);
bpx += 55;
buttoni.setSize(50,50);
buttoni.setLocation(bpx, bpy);
bpy += 55;
bpx = 5;
buttonj.setSize(50,50);
buttonj.setLocation(bpx, bpy);
bpx += 55;
buttonk.setSize(50,50);
buttonk.setLocation(bpx, bpy);
bpx += 55;
buttonl.setSize(50,50);
buttonl.setLocation(bpx, bpy);
bpx += 55;
buttonm.setSize(50,50);
buttonm.setLocation(bpx, bpy);
bpx += 55;
buttonn.setSize(50,50);
buttonn.setLocation(bpx, bpy);
bpx += 55;
buttono.setSize(50,50);
buttono.setLocation(bpx, bpy);
bpx += 55;
buttonp.setSize(50,50);
buttonp.setLocation(bpx, bpy);
bpx += 55;
buttonq.setSize(50,50);
buttonq.setLocation(bpx, bpy);
bpx += 55;
buttonr.setSize(50,50);
buttonr.setLocation(bpx, bpy);
bpy += 55;
bpx = 30;
buttons.setSize(50,50);
buttons.setLocation(bpx, bpy);
bpx += 55;
buttont.setSize(50,50);
buttont.setLocation(bpx, bpy);
bpx += 55;
buttonu.setSize(50,50);
buttonu.setLocation(bpx, bpy);
bpx += 55;
buttonv.setSize(50,50);
buttonv.setLocation(bpx, bpy);
bpx += 55;
buttonw.setSize(50,50);
buttonw.setLocation(bpx, bpy);
bpx += 55;
buttonx.setSize(50,50);
buttonx.setLocation(bpx, bpy);
bpx += 55;
buttony.setSize(50,50);
buttony.setLocation(bpx, bpy);
bpx += 55;
buttonz.setSize(50,50);
buttonz.setLocation(bpx, bpy);
bpx += 55;
ActionListener actionListenera = new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("a");
}
};
buttona.addActionListener(actionListenera);
ActionListener actionListenerb = new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("b");
}
};
buttonb.addActionListener(actionListenerb);
ActionListener actionListenerc = new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("c");
}
};
buttonc.addActionListener(actionListenerc);
ActionListener actionListenerd = new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("d");
}
};
buttond.addActionListener(actionListenerd);
ActionListener actionListenere= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("e");
}
};
buttone.addActionListener(actionListenere);
ActionListener actionListenerf= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("f");
}
};
buttonf.addActionListener(actionListenerf);
ActionListener actionListenerg= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("g");
}
};
buttong.addActionListener(actionListenerg);
ActionListener actionListenerh= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("h");
}
};
buttonh.addActionListener(actionListenerh);
ActionListener actionListeneri= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("i");
}
};
buttoni.addActionListener(actionListeneri);
ActionListener actionListenerj= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("j");
}
};
buttonj.addActionListener(actionListenerj);
ActionListener actionListenerk= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("k");
}
};
buttonk.addActionListener(actionListenerk);
ActionListener actionListenerl= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("l");
}
};
buttonl.addActionListener(actionListenerl);
ActionListener actionListenerm= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("m");
}
};
buttonm.addActionListener(actionListenerm);
ActionListener actionListenern= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("n");
}
};
buttonn.addActionListener(actionListenern);
ActionListener actionListenero= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("o");
}
};
buttono.addActionListener(actionListenero);
ActionListener actionListenerp= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("p");
}
};
buttonp.addActionListener(actionListenerp);
ActionListener actionListenerq= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("q");
}
};
buttonq.addActionListener(actionListenerq);
ActionListener actionListenerr= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("r");
}
};
buttonr.addActionListener(actionListenerr);
ActionListener actionListeners= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("s");
}
};
buttons.addActionListener(actionListeners);
ActionListener actionListenert= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("t");
}
};
buttont.addActionListener(actionListenert);
ActionListener actionListeneru= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("u");
}
};
buttonu.addActionListener(actionListeneru);
ActionListener actionListenerv= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("v");
}
};
buttonv.addActionListener(actionListenerv);
ActionListener actionListenerw= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("w");
}
};
buttonw.addActionListener(actionListenerw);
ActionListener actionListenerx= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("x");
}
};
buttonx.addActionListener(actionListenerx);
ActionListener actionListenery= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("y");
}
};
buttony.addActionListener(actionListenery);
ActionListener actionListenerz= new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
check("z");
}
};
buttonz.addActionListener(actionListenerz);
panel1.add(buttona);
panel1.add(buttonb);
panel1.add(buttonc);
panel1.add(buttond);
panel1.add(buttone);
panel1.add(buttonf);
panel1.add(buttong);
panel1.add(buttonh);
panel1.add(buttoni);
panel1.add(buttonj);
panel1.add(buttonk);
panel1.add(buttonl);
panel1.add(buttonm);
panel1.add(buttonn);
panel1.add(buttono);
panel1.add(buttonp);
panel1.add(buttonq);
panel1.add(buttonr);
panel1.add(buttons);
panel1.add(buttont);
panel1.add(buttonu);
panel1.add(buttonv);
panel1.add(buttonw);
panel1.add(buttonx);
panel1.add(buttony);
panel1.add(buttonz);
panel1.add(label1);
frame1.add(panel1);
aLFill();
nWord();
}
private static void nWord() {
int max = al1.size()-1;
int min = 0;
int randomNum = rand.nextInt((max - min) + 1) + min;
String disp = "";
label1.setText(al1.get(randomNum));
for (int i = 0; i < al1.get(randomNum).length(); i++) {
disp += ".";
}
game(al1.get(randomNum), disp);
}
private static void game(String Word1, String disp) {
Word = Word1;
cw = Word.toLowerCase().toCharArray();
cdisp = disp.toCharArray();
display(disp);
}
private static void check(String letter) {
String disp = "";
for (int i = 0; i < Word.length(); i++) {
disp += ".";
}
used.add(letter);
for (int i = 0; i < used.size(); i++) {
if (Word.toLowerCase().contains(used.get(i))) {
for (int j = 0; j < cw.length; j++) {
if (cw[j] == letter.charAt(0)) {
lp.add(j);
}
}
for (int j = 0; j < lp.size(); j++) {
cdisp[lp.get(j)] = Word.charAt(lp.get(j));
}
disp = "";
for (int j = 0; j < cdisp.length; j++) {
disp += cdisp[j];
}
}
}
display(disp);
}
private static void display(String disp) {
label1.setText(disp);
}
private static void aLFill() {
String zeile1 = br.readLine();
al1.add("Hallo");
al1.add("Test");
al1.add("Computersimulation");
al1.add("Elefant");
}
}
它生成错误:
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
at wrs.mainWRS.main(mainWRS.java:70)
我做错了什么？
//已编辑 这里仅显示如何生成错误的代码段。
package sof;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
public class wrs{
static File file = new File("C:\\Users\\Jan\\Desktop\\Test.txt");
static FileReader filereader = new FileReader(file);
static BufferedReader bufferedreader = new BufferedReader(filereader);
public static void main(String[]args){ //<-- Line 12
}
}
新的错误是:
线程“main”java.lang.Error中出现异常: Unresolved 编译问题:
在 sof.wrs.main(wrs.java:12)
最佳答案
您需要使用这些“/”之一而不是这些“\”，如下所示:
static File file = new File("C:/Users/Jan/Desktop/eTest.txt");
关于java - 如何在 Java 中从 .txt 文件读取字符串？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29985691/