bug fixes

Author: runyan

src/Library/DlgAddBooks.java

@@ -212,12 +212,15 @@ private ImageIcon CreateStretchImageIcon(String imgPath, int width,
 		try {
 			img = ImageIO.read(new File(imgPath));
 		} catch (IOException e) {
-			e.printStackTrace();
+			//e.printStackTrace();
+			System.out.print("cannot read file");
+			return null;
 		}
 
 		Image scaledImg = img.getScaledInstance(width, height,
 				java.awt.Image.SCALE_SMOOTH);
 		ImageIcon imageIcon = new ImageIcon(scaledImg);
+		
 		return imageIcon;
 	}
 

src/Library/FrmBooksManagement.java

@@ -127,6 +127,7 @@ public FrmBooksManagement(Library lib) {
 
 		tStatus.setVisible(true);
 		tStatus.setBounds(750, 100, 200, 25);
+		tStatus.setEnabled(false);
 		this.add(tStatus);
 
 		lISBN = new JLabel();

src/Library/Library.java

@@ -116,7 +116,7 @@ public boolean copyBookImage(String srcImgPath, String srcImgFileName, String ne
 		try {
 			fi = new FileInputStream(srcPath);
 		} catch (FileNotFoundException e) {
-			e.printStackTrace();
+			//e.printStackTrace();
 			return false;
 		}
 		BufferedInputStream in = new BufferedInputStream(fi);
@@ -294,9 +294,11 @@ ArrayList<Book> showBookList_overdue(){
 		while(bookItr.hasNext()){
 			Book tempBook = bookItr.next();
 			if(tempBook.isRented()==true){
-				
+				if(tempBook.getLastRented() == null)
+					continue;
 				if(new Date().getTime() - tempBook.getLastRented().getTime() >=  OverdueTimeLimit)
-				tempBookList.add(tempBook);
+					tempBookList.add(tempBook);
+					
 
 
 			}//end if