NullPointerExceptionが発生する

Question

現在、イメージ関係のクラスを作っています。
その時、エラーが発生しています。

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
	at org.test.SwingTestPanel.jyl_paint(SwingTest.java:33)
	at org.yukkuri.jyl.base.swing.JylPanel.paintComponent(JylPanel.java:69)
	at javax.swing.JComponent.paint(JComponent.java:1055)
	at javax.swing.JComponent.paintChildren(JComponent.java:888)
	at javax.swing.JComponent.paint(JComponent.java:1064)
	at javax.swing.JComponent.paintChildren(JComponent.java:888)
	at javax.swing.JComponent.paint(JComponent.java:1064)
	at javax.swing.JLayeredPane.paint(JLayeredPane.java:585)
	at javax.swing.JComponent.paintChildren(JComponent.java:888)
	at javax.swing.JComponent.paintToOffscreen(JComponent.java:5239)
	at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1529)
	at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1452)
	at javax.swing.RepaintManager.paint(RepaintManager.java:1249)
	at javax.swing.JComponent.paint(JComponent.java:1041)
	at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:39)
	at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:78)
	at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:115)
	at java.awt.Container.paint(Container.java:1967)
	at java.awt.Window.paint(Window.java:3877)
	at javax.swing.RepaintManager$3.run(RepaintManager.java:819)
	at javax.swing.RepaintManager$3.run(RepaintManager.java:796)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:796)
	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:769)
	at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:718)
	at javax.swing.RepaintManager.access$1100(RepaintManager.java:62)
	at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1677)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:312)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:745)
	at java.awt.EventQueue.access$300(EventQueue.java:103)
	at java.awt.EventQueue$3.run(EventQueue.java:706)
	at java.awt.EventQueue$3.run(EventQueue.java:704)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:715)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)

ソースは

package org.test;

import org.yukkuri.jyl.base.*;
import org.yukkuri.jyl.base.swing.*;

final class SwingTest
{
	public static void main( String[] args )
	{
		JylFrame jf = new JylFrame();
		jf.setSize( ComSize.getD( 640, 480 ) );
		jf.add( new SwingTestPanel() );
		jf.setVisible( true );
	}
}

final class SwingTestPanel extends JylPanel
{
	JylImage ji;

	public SwingTestPanel()
	{
		super();
		try{
			ji = new JylImage( "imagee\nc74841.png", 0, 0, 256, 3136 );
		}catch( Exception e){}
	}

	@Override public void jyl_paint( JylGraphics g )
	{
		g.setColor( 0xff00ff00 );
		g.drawRect( 100, 200, 400, 200 );
		g.drawImage( ji.getImage(), 100, 100 );
	}
}

package org.yukkuri.jyl.base;

import java.awt.image.BufferedImage;
import java.io.*;

import javax.imageio.ImageIO;
public class JylImage
{
	private BufferedImage jyl_bi;

	public JylImage( BufferedImage bi, int x, int y, int w, int h )
	{
		jyl_bi = bi.getSubimage( x, y, w, h );
	}

	public JylImage( File file, int x, int y, int w, int h ) throws IOException
	{
		BufferedImage	bi= ImageIO.read( file );
		jyl_bi = bi.getSubimage( x, y, w, h );
	}

	public JylImage( String fname, int x, int y, int w, int h ) throws IOException
	{
		BufferedImage	bi= ImageIO.read( new File( fname ) );		    jyl_bi = bi.getSubimage( x, y, w, h );
	}

	public BufferedImage getImage()
	{
		return jyl_bi;
	}
}

JylFrameはJFrame、JylPanelはJPanelの継承クラスです。

Comments

[退会済みユーザー]

何が分からないのか、教えていただけますか？

[crowmt]

"imagee\\nc74841.png"　のimageはeが２つなのは誤字ですか？そういうフォルダですか？

[yukkuri]

ご表記です…

[crowmt]

あるあるってことで（笑　解決して何よりです。

Answer 1

ファイル名の間違いでした。ご迷惑をおかけしました。