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how to restrict the mouse just on the icon on java

I have button on frame. On that button I put an image, which as you see that is a search icon. I remove the visible border on the button. But still I have two questions:
when I put the mouse on the button, the image and also the invisible button border is clickable, what I need is restrict it just on the icon.
I want to make the icon focusable by clicking like click on the simple button.
Search Icon:

What sort of image file format are you using? If it's a format with transparency support, you'll have to implement an algorithm that checks whether the click coordinate is inside of the non-transparent pixels of the icon you're using. You'll have to offset the rgb checks on the image pixels by the position of the image on your frame as well. Use this as a reference - Java Image Processing

How to shift the position of tabbed panes

I know that when I create an instance of tabbed panes I set the position as such:
jtp = new JTabbedPane(SwingConstants.LEFT)
My question is that is it possible to set the position to the left as above, but to shift the starting position a little bit downwards? I do not want the first tab appearing at the very top of the left hand side. I want to leave some empty space. Is that possible? Thanks.

You can pack your component into javax.swing.Box add shift it:
jtp.add("Component shifted vertically", shiftVertical(your_component, 5)); // 5 px or more
public static Box shiftVertical(JComponent component, int size){
Box vBox = Box.createVerticalBox();
vBox.add(Box.createVerticalStrut(size));
vBox.add(component);
return vBox;
}

I managed to find a work around for this problem. I did this by creating a "dummy" icon which was basically a square with the same colour as the background colour of the tabbed panes. I then set this icon as the icon for a "dummy" tabbed pane and disabled the tab:
jtp.addTab("", dummyIcon, null);
jtp.setEnabledAt(0, false);
By resizing the icon I could make the first tabbed pane take up as much space as i wanted since the panes don't have to be the same size. This way The first tab was not clickable and it had a colour similar to the background colour of the panel, so it appeared as if the space was empty.

Large Image on JButton not showing

is there a way to show an image larger than the small imageIcon?
I have a 64x64 png image that I am trying to show on a button (take up the whole button).
but when I use
ImageIcon icon = new ImageIcon("somePath");
JButton btnBuildStructure = new JButton(icon);
the image that is shown is only the 16x16 in the top left corner of the image I want shown
how do I do this?
I want it to look like this

The JButton should naturally size to an optimal preferred size that shows the entire icon. If this is not happening, then you are likely restricting the size of the JButton artificially. The solution: use the layout managers well, call pack() after adding all components and before setting the GUI visible, avoid null layouts, call revalidate() and repaint() on containers if you change any components, or their sizes or preferred sizes (such as if you change an icon while a program runs).

JLabel with Icon aligned to left

I have a JLabel with a Icon and text aligned to bottom, the icon is center to the text,
how do i have the Text and the icon aligned to left and the text below the icon.
My current code is as below
label.setIcon(new ImageIcon(fileName));
label.setText("This text is going to be varying size and can be bit long");
label.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
label.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);

If you mean someting like this, then I cheated.
Basically, I created two JLabels on a JPanel. Using a GridBagLayout I aligned the two labels onto of each other and anchored to the WEST
It would pretty easy to create a custom component for the purpose if you wanted to reuse it.

your just setting the Position of your text in your code..not the Icon it self
Try to separate the icon in the label then format it using set bounds or any formlayout

JButton from image

I want to make JButton from image. But when i do it like this:
private void AddMainActionsButtons(Container powZawartosci){
JPanel mainActionButtons = new JPanel();
JButton applyButton = createImageButton("obrazki/apply.png");
mainActionButtons.add(applyButton);
powZawartosci.add(mainActionButtons);
mainActionButtons.setBounds(150,530,400,90);
}
private JButton createImageButton(String imagePath){
ImageIcon icon = uploadImage(imagePath,"");
JButton button = new JButton(icon);
return button;
}
JButton looks bad, because image is inside button component, and in fact I got image on image. How can I create as big JButton as my image, and how to cover it by image in 100%. In other words: how to make my image be a Button?

You need to take the space out of the buttons by removing the border. See this answer for details.
Seen above is the single image split into 9 parts. The N/S/E/W are buttons (East is activated - shown with a red border) and the rest are labels - each containing the relevant part of the original image.
See also this answer for a version that uses simpler images with JToggleButton instances.

Have you tried setting the background to a transparent color?
This will remove the funky grey border around your image that often looks bad.