Buffered Image Junit error

Question

I get the following error when I try to load a buffered image in a junit test.

Default constructor cannot handle exception type IOException thrown by implicit super constructor. Must define an explicit constructor

The code this affects is:

BufferedImage testFrame = ImageIO.read(new File("C:/Users/Darren/testPicture.png"));

I have tried surrounding it with try and catch. I get an error stating incorrect syntax when I use try catch.

I have no errors when using buffered image in my main program.

Any help would be great.

Which specific constructor is this error being attached to? You have at least two object constructions happening in this statement. — chrylis -cautiouslyoptimistic-, Aug 25 '13 at 00:07

score 0 · Accepted Answer · answered Aug 24 '13 at 23:22

Try-catch is the solution here. This example has correct syntax:

BufferedImage testFrame;
try {
    testFrame = ImageIO.read(new File("C:/Users/Darren/testPicture.png"));
} catch(IOException e) {
    // do something about it
}

The fact that testFrame is defined outside the try-catch is very important. If not, testFrame will go out of scope after the try block.

Buffered Image Junit error

1 Answers1