[Java] array function that call image files.

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Java

netbeans

So I thought about decreasing my code, by making a function that does the same as 4 lines of code. But in order to do that, I will have to make an string array function that calls the image files. I want to make a function that does this;

Image StartScreen1 = Toolkit.getDefaultToolkit().getImage("1.png");
g.drawImage(StartScreen1, 0, 0, FrameHeight + 25, FrameLength - 10, this);

The function would then look similar to this

public void Image("" file){
String[] ImageNr = new String[30]
ImageNr[1] ="1.png"
ImageNr[2] ="2.png"
ImageNr[3] ="3.png"
// and so on....
}

The problem is I dont know how to properly make the function that will call in the images. Can someone please explain how to make a array function that calls files?

What I have tried:

I have tried to read about arrays and string arrays, etc but could not understand how to properly do it.