所以我创建了这个程序，之前它运行得很好，但是在转移计算机之后，我的程序爆炸了。 JOptionPane 正在被垃圾邮件发送并完全运行内存。如果您能运行这个程序并告诉我出了什么问题，我将不胜感激。该程序应该在 JFrame 上创建一张宾果卡。
package Bingopackage;
import javax.swing*;
import java.awt.*;
import java.awt.event.*;
import java.awt.AWTEvent;
public class BingoCard extends JComponent {
public void paintComponent(Graphics g)
{
//Recover Graphics
int BValues []= new int [5];
int IValues []= new int [5];
int NValues []= new int [4];
int GValues []= new int [5];
int OValues []= new int [5];
JOptionPane.showMessageDialog(null," We will now guide you in making your very own Bingo Card");
for (int B = 0; B<BValues.length; B++)
{
String BVal = JOptionPane.showInputDialog(null, "Please enter 5 different numbers"+ "\n" + "that are in the range of 1-15");
BValues[B]=Integer.parseInt(BVal);
if (BValues[B]<1 || BValues[B]>15)
{ JOptionPane.showMessageDialog(null, "You have failed to comply");
System.exit (0);
}
}
int B1 = BValues [0];
int B2 = BValues [1];
int B3 = BValues [2];
int B4 = BValues [3];
int B5 = BValues [4];
if (B1==B2 || B1==B3 || B1== B4 || B1==B5 || B2==B3 || B2== B4|| B2==B5 || B3== B4 || B3== B5 || B4==B5)
{
JOptionPane.showMessageDialog(null, "You have failed to comply");
System.exit (0);
}
for (int I = 0; I<IValues.length; I++)
{
String IVal = JOptionPane.showInputDialog(null, "Please enter 5 different numbers"+ "\n" + "that are in the range of 16-30");
IValues[I]=Integer.parseInt(IVal);
if (IValues[I]<16 || IValues[I]>30)
{ JOptionPane.showMessageDialog(null, "You have failed to comply");
System.exit (0);
}
}
int I1 = IValues [0];
int I2 = IValues [1];
int I3 = IValues [2];
int I4 = IValues [3];
int I5 = IValues [4];
if (I1==I2 || I1==I3 || I1== I4 || I1==I5 || I2==I3 || I2== I4|| I2==I5 || I3== I4 || I3== I5 || I4==I5)
{
JOptionPane.showMessageDialog(null, "You have failed to comply");
System.exit (0);
}
for (int N = 0; N<NValues.length; N++)
{
String NVal = JOptionPane.showInputDialog(null, "Please enter 4 different numbers"+ "\n" + "that are in the range of 31-45");
NValues[N]=Integer.parseInt(NVal);
if (NValues[N]<31 || NValues[N]>45)
{ JOptionPane.showMessageDialog(null, "You have failed to comply");
System.exit (0);
}
}
int N1 = NValues [0];
int N2 = NValues [1];
int N3 = NValues [2];
int N4 = NValues [3];
if (N1==N2 || N1==N3 || N1== N4 || N2==N3 || N2== N4|| N3== N4)
{
JOptionPane.showMessageDialog(null, "You have failed to comply");
System.exit (0);
}
for (int G = 0; G<GValues.length; G++)
{
String GVal = JOptionPane.showInputDialog(null, "Please enter 5 different numbers"+ "\n" + "that are in the range of 46-60");
GValues[G]=Integer.parseInt(GVal);
if (GValues[G]<46 || GValues[G]>60)
{ JOptionPane.showMessageDialog(null, "You have failed to comply");
System.exit (0);
}
}
int G1 = GValues [0];
int G2 = GValues [1];
int G3 = GValues [2];
int G4 = GValues [3];
int G5 = GValues [4];
if (G1==G2 || G1==G3 || G1== I4 || G1==G5 || G2==G3 || G2== G4|| G2==G5 || G3== G4 || G3== G5 || G4==G5)
{
JOptionPane.showMessageDialog(null, "You have failed to comply");
System.exit (0);
}
for (int O = 0; O<OValues.length; O++)
{
String OVal = JOptionPane.showInputDialog(null, "Please enter 5 different numbers"+ "\n" + "that are in the range of 61-75");
OValues[O]=Integer.parseInt(OVal);
if (OValues[O]<61 || OValues[O]>75)
{ JOptionPane.showMessageDialog(null, "You have failed to comply");
System.exit (0);
}
}
int O1 = OValues [0];
int O2 = OValues [1];
int O3 = OValues [2];
int O4 = OValues [3];
int O5 = OValues [4];
if (O1==O2 || O1==O3 || O1== O4 || O1==O5 || O2==O3 || O2== O4|| O2==O5 || O3== O4 || O3== O5 || O4==O5)
{
JOptionPane.showMessageDialog(null, "You have failed to comply");
System.exit (0);
}
Graphics2D g3 = (Graphics2D) g;
g3.setColor(Color.BLACK);
Font bingoFont = new Font ("Tahoma", Font.PLAIN,69);
g3.setFont(bingoFont);
Rectangle bingosign = new Rectangle (75,10, 500, 75);
g3.draw(bingosign);
g3.drawString ("B I N G O", 110, 70);
Rectangle B1Box = new Rectangle (75, 85, 100, 100);
g3.draw(B1Box);
Rectangle B2Box = new Rectangle (75, 185, 100, 100);
g3.draw(B2Box);
Rectangle B3Box = new Rectangle (75, 285, 100, 100);
g3.draw(B3Box);
Rectangle B4Box = new Rectangle (75, 385, 100, 100);
g3.draw(B4Box);
Rectangle B5Box = new Rectangle (75, 485, 100, 100);
g3.draw(B5Box);
Rectangle I1Box = new Rectangle (175, 85, 100, 100);
g3.draw(I1Box);
Rectangle I2Box = new Rectangle (175, 185, 100, 100);
g3.draw(I2Box);
Rectangle I3Box = new Rectangle (175, 285, 100, 100);
g3.draw(I3Box);
Rectangle I4Box = new Rectangle (175, 385, 100, 100);
g3.draw(I4Box);
Rectangle I5Box = new Rectangle (175, 485, 100, 100);
g3.draw(I5Box);
Rectangle N1Box = new Rectangle (275, 85, 100, 100);
g3.draw(N1Box);
Rectangle N2Box = new Rectangle (275, 185, 100, 100);
g3.draw(N2Box);
Rectangle N3Box = new Rectangle (275, 285, 100, 100);
g3.draw(N3Box);
Rectangle N4Box = new Rectangle (275, 385, 100, 100);
g3.draw(N4Box);
Rectangle N5Box = new Rectangle (275, 485, 100, 100);
g3.draw(N5Box);
Rectangle G1Box = new Rectangle (375, 85, 100, 100);
g3.draw(G1Box);
Rectangle G2Box = new Rectangle (375, 185, 100, 100);
g3.draw(G2Box);
Rectangle G3Box = new Rectangle (375, 285, 100, 100);
g3.draw(G3Box);
Rectangle G4Box = new Rectangle (375, 385, 100, 100);
g3.draw(G4Box);
Rectangle G5Box = new Rectangle (375, 485, 100, 100);
g3.draw(G5Box);
Rectangle O1Box = new Rectangle (475, 85, 100, 100);
g3.draw(O1Box);
Rectangle O2Box = new Rectangle (475, 185, 100, 100);
g3.draw(O2Box);
Rectangle O3Box = new Rectangle (475, 285, 100, 100);
g3.draw(O3Box);
Rectangle O4Box= new Rectangle (475, 385, 100, 100);
g3.draw(O4Box);
Rectangle O5Box = new Rectangle (475, 485, 100, 100);
g3.draw(O5Box);
g3.setColor(Color.RED);
g3.fill(N3Box);
g3.setColor(Color.BLACK);
String B1String = String.valueOf(B1);
String B2String = String.valueOf(B2);
String B3String = String.valueOf(B3);
String B4String = String.valueOf(B4);
String B5String = String.valueOf(B5);
String I1String = String.valueOf(I1);
String I2String = String.valueOf(I2);
String I3String = String.valueOf(I3);
String I4String = String.valueOf(I4);
String I5String = String.valueOf(I5);
String N1String = String.valueOf(N1);
String N2String = String.valueOf(N2);
String N3String = String.valueOf(N3);
String N4String = String.valueOf(N4);
String G1String = String.valueOf(G1);
String G2String = String.valueOf(G2);
String G3String = String.valueOf(G3);
String G4String = String.valueOf(G4);
String G5String = String.valueOf(G5);
String O1String = String.valueOf(O1);
String O2String = String.valueOf(O2);
String O3String = String.valueOf(O3);
String O4String = String.valueOf(O4);
String O5String = String.valueOf(O5);
g3.drawString(B1String, 90, 160);
g3.drawString(B2String, 90, 260);
g3.drawString(B3String, 90, 360);
g3.drawString(B4String, 90, 460);
g3.drawString(B5String, 90, 560);
g3.drawString(I1String, 190, 160);
g3.drawString(I2String, 190, 260);
g3.drawString(I3String, 190, 360);
g3.drawString(I4String, 190, 460);
g3.drawString(I5String, 190, 560);
g3.drawString(N1String, 290, 160);
g3.drawString(N2String, 290, 260);
g3.drawString(N3String, 290, 460);
g3.drawString(N4String, 290, 560);
g3.drawString(G1String, 390, 160);
g3.drawString(G2String, 390, 260);
g3.drawString(G3String, 390, 360);
g3.drawString(G4String, 390, 460);
g3.drawString(G5String, 390, 560);
g3.drawString(O1String, 490, 160);
g3.drawString(O2String, 490, 260);
g3.drawString(O3String, 490, 360);
g3.drawString(O4String, 490, 460);
g3.drawString(O5String, 490, 560);
Graphics2D g2 = (Graphics2D) g;
g2.setColor(Color.LIGHT_GRAY);
Font freeSpaceFont = new Font("Helvetica", Font.PLAIN,16);
g2.setFont(freeSpaceFont);
g2.drawString("Free", 305, 330);
g2.drawString("Space", 300, 350);
}
}
package Bingopackage;
import javax.swing.JFrame;
import Bingopackage.BingoCard;
public class BingoCardJFrame {
public static void main(String[] args)
{
// TODO Auto-generated method stub/
JFrame frame =new JFrame();
frame.setSize(700,650);
frame.setTitle("Bingo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
BingoCard component = new BingoCard();
frame.add(component);
frame.setVisible(true);
}
}
最佳答案
首先阅读 Performing Custom Painting和 Painting in AWT and Swing这样您就可以了解 Swing 中的绘画是如何完成的。
接下来，从组件的 paintComponent 方法中删除与绘制组件不直接相关的所有内容
Swing 是一个事件驱动的环境，这意味着发生了某些事情并且您对其做出响应。 Swing 会出于多种原因重新绘制您的组件，其中许多原因是您无法控制的。
看看How to create a GUI with Swing了解更多详情
关于java - 如何修复发送垃圾邮件的 JOptionPane？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20831134/