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how to read data from text file and pass them to junit test as parameterized test in java?

So Im doing JUnit Tests. While Im getting the parameters for my test method in a text document I counter an issue that is after the parameter object is not working well. All my parameter pass to the test method at once but I want them to pass separately.
Image below is what I want(Red line means the second set of parameters). The image is a sample run of my test method.
https://ibb.co/nFLhOc
This is my code:
String fileName = "ChargeData.txt";
try
{
scan = new Scanner(new File(fileName));
}
catch(FileNotFoundException e)
{
e.printStackTrace();
}
ArrayList<Object[]> Params = new ArrayList<Object[]>();
List listOfLists = new ArrayList();
ArrayList <Integer> quantityList;
ArrayList <Boolean> highQualityList;
ArrayList <Boolean> designEffectList;
ArrayList <Double> expectedResultList;
while(scan.hasNext())
{
quantityList = new ArrayList<Integer>();
highQualityList = new ArrayList<Boolean>();
designEffectList = new ArrayList<Boolean>();
expectedResultList = new ArrayList<Double>();
while(scan.hasNextInt())
{
quantityList.add(new Integer(scan.next()));
}
for(int i=0;i<quantityList.size();i++)
{
highQualityList.add(new Boolean(scan.next()));
}
for(int i=0;i<quantityList.size();i++)
{
designEffectList.add(new Boolean(scan.next()));
}
expectedResultList.add(new Double(scan.next()));
int[] quantity = new int[quantityList.size()];
boolean[] highQuality = new boolean[quantityList.size()];
boolean[] designEffect = new boolean[quantityList.size()];
double[] expectedResult = new double[1];
for (int i=0; i < quantity.length; i++)
{
quantity[i] = quantityList.get(i).intValue();
highQuality[i] = highQualityList.get(i).booleanValue();
designEffect[i] = designEffectList.get(i).booleanValue();
}
expectedResult[0] = expectedResultList.get(0).doubleValue();
listOfLists.add(quantity);
listOfLists.add(highQuality);
listOfLists.add(designEffect);
listOfLists.add(expectedResult);
}
Params.add(listOfLists.toArray());
scan.close();
return Params.toArray();
}

Code Logic problem, just move the Params.add(listOfLists.toArray()); inside while loop fixed it.
while(scan.hasNext())
{
quantityList = new ArrayList<Integer>();
highQualityList = new ArrayList<Boolean>();
designEffectList = new ArrayList<Boolean>();
expectedResultList = new ArrayList<Double>();
while(scan.hasNextInt())
{
quantityList.add(new Integer(scan.next()));
}
for(int i=0;i<quantityList.size();i++)
{
highQualityList.add(new Boolean(scan.next()));
}
for(int i=0;i<quantityList.size();i++)
{
designEffectList.add(new Boolean(scan.next()));
}
expectedResultList.add(new Double(scan.next()));
int[] quantity = new int[quantityList.size()];
boolean[] highQuality = new boolean[quantityList.size()];
boolean[] designEffect = new boolean[quantityList.size()];
double[] expectedResult = new double[1];
for (int i=0; i < quantity.length; i++)
{
quantity[i] = quantityList.get(i).intValue();
highQuality[i] = highQualityList.get(i).booleanValue();
designEffect[i] = designEffectList.get(i).booleanValue();
}
expectedResult[0] = expectedResultList.get(0).doubleValue();
listOfLists.add(quantity);
listOfLists.add(highQuality);
listOfLists.add(designEffect);
listOfLists.add(expectedResult);
Params.add(listOfLists.toArray());
}

NullPointerException While adding JLabel to JPanel [duplicate]

This question already has answers here:
What is a NullPointerException, and how do I fix it?
(12 answers)
Closed 5 years ago.
Im getting this strange NullpointerException whilst adding a JLabel to a JPanel:
loadoutAdvWeaponPanels = new JPanel[4][4];
loadoutAdvWeaponButtons = new JButton[4];
loadoutAdvPistolLabels = new JLabel[4][8];
//Init loadoutAdvPanels[0]
loadoutAdvWeaponButtons[0] = new JButton("Pistols");
loadoutAdvPistolLabels[0][0] = new JLabel("USP-S");
loadoutAdvPistolLabels[0][1] = new JLabel("P2000");
loadoutAdvPistolLabels[0][2] = new JLabel("Dual Berettas");
loadoutAdvPistolLabels[0][3] = new JLabel("P250");
loadoutAdvPistolLabels[0][4] = new JLabel("Five-SeveN");
loadoutAdvPistolLabels[0][5] = new JLabel("CZ75-Auto");
loadoutAdvPistolLabels[0][6] = new JLabel("Desert Eagle");
loadoutAdvPistolLabels[0][7] = new JLabel("R8 Revolver");
loadoutAdvWeaponPanels[0][0].add(loadoutAdvPistolLabels[0][0]);
The error occurs in the last line, but i dont know why.

Simple as I see!
You do not initialisized loadoutAdvWeaponPanels[0][0]
I prefer to use this:
for(int i = 0; i < loadoutAdvWeaponPanels.length; i++) {
for(int j = 0; loadoutAdvWeaponPanels[i].length; j++) {
{
loadoutAdvWeaponPanels[i][j] = new JPanel();
}
}

you should initialize the array loadoutAdvWeaponPanels
loadoutAdvWeaponPanels = new JPanel[4][4];
for(int i = 0; i < loadoutAdvWeaponPanels.length; i++)
for(int j = 0; j < loadoutAdvWeaponPanels[i].length; j++)
loadoutAdvWeaponPanels[i][j] = new JPanel();
or just initialize what you need
loadoutAdvWeaponPanels[0][0] = new JPanel();
loadoutAdvWeaponPanels[0][0].add(loadoutAdvPistolLabels[0][0]);

insert i variable from for loop in filename using java/ javafx

How am I able to insert the i from the for loop in the imageview below, not the i to replace 12 in the file name so that it can become;
ImageView Moon_img12 = new ImageView(new Image(getClass().getResourceAsStream("/Images/tiles/i.png")));
Code:
for(int i=0; i<=total_donnation; i++)
{
ImageView Moon_img12 = new ImageView(new Image(getClass().getResourceAsStream("/Images/tiles/12.png")));
}

Try
ImageView[] moon_images = //init array
//loop
ImageView Moon_img = new ImageView(new Image(getClass().getResourceAsStream("/Images/tiles/"+i+".png
moon_images[i]= Moon_img;

Thanks you all, i have solved it now using your help.
GridPane grid = new GridPane();
int max_columns = 5;
int current_row = 0;
int current_column = 0;
int total_donnation = 7;
for(int i=1; i<=total_donnation; i++)
{
ImageView Moon_img = new ImageView(new Image(getClass().getResourceAsStream("/Images/tiles/"+i+".png")));
grid.add(Moon_img, current_column,current_row);
current_column = current_column+1;
if (current_column == max_columns )
{
current_row = current_row+1;
current_column = 0;
}
}
return grid;

How to combine multiple multi-page tif files into a single tif

I am trying to take multiple multi-page .tif files and combine them into a single multi-page tif file.
I found some code in this question, but it only seems to take the first page of each individual .tif file and create the new multi-page .tif with those first pages.
Is there a small change I'm not seeing that would cause this same code to grab every page from the source .tif files and put them all into the combined .tif?
To clarify, I would like the source files:
SourceA.tif (3 pages)
SourceB.tif (4 pages)
SourceC.tif (1 page)
to be combined into
combined.tif (8 pages)
I would also like to be able to specify a resolution and compression of the .tif, but I'm not sure if JAI supports that and it's not a necessity for a correct answer.
The code from the referenced question, modified by me to load all the .tif files in a directory, is below for easy answering:
public static void main(String[] args) {
String inputDir = "C:\\tifSources";
File sourceDirectory = new File(inputDir);
File file[] = sourceDirectory.listFiles();
int numImages = file.length;
BufferedImage image[] = new BufferedImage[numImages];
try
{
for (int i = 0; i < numImages; i++)
{
SeekableStream ss = new FileSeekableStream(file[i]);
ImageDecoder decoder = ImageCodec.createImageDecoder("tiff", ss, null);
PlanarImage op = new NullOpImage(decoder.decodeAsRenderedImage(0), null, null, OpImage.OP_IO_BOUND);
image[i] = op.getAsBufferedImage();
}
TIFFEncodeParam params = new TIFFEncodeParam();
OutputStream out = new FileOutputStream(inputDir + "\\combined.tif");
ImageEncoder encoder = ImageCodec.createImageEncoder("tiff", out, params);
List<BufferedImage> imageList = new ArrayList<BufferedImage>();
for (int i = 0; i < numImages; i++)
{
imageList.add(image[i]);
}
params.setExtraImages(imageList.iterator());
encoder.encode(image[0]);
out.close();
}
catch (Exception e)
{
System.out.println("Exception " + e);
}
}

I knew I was just missing some little part about iterating over the pages in a single .tif, I just wasn't sure where it was.
More searching on the internet led me to find that rather than doing:
PlanarImage op = new NullOpImage(decoder.decodeAsRenderedImage(0), null, null, OpImage.OP_IO_BOUND);
I wanted to iterate over every page in the current document with something like:
int numPages = decoder.getNumPages();
for(int j = 0; j < numPages; j++)
{
PlanarImage op = new NullOpImage(decoder.decodeAsRenderedImage(j), null, null, OpImage.OP_IO_BOUND);
images.add(op.getAsBufferedImage());
}
This adds every page of every .tif into the images List. One final trap was that the final call to
encoder.encode(images.get(0));
Would cause the first page to be in the new .tif twice, so I added an intermediate loop and List population that doesn't add the first page in the call to:
params.setExtraImages(imageList.iterator());
which keeps the first page out of the "ExtraImages" and it gets added with the call to encode.
Final updated code is:
public static void main(String[] args) {
String inputDir = "C:\\tifSources";
File faxSource = new File(inputDir);
File file[] = faxSource.listFiles();
System.out.println("files are " + Arrays.toString(file));
int numImages = file.length;
List<BufferedImage> images = new ArrayList<BufferedImage>();
try
{
for (int i = 0; i < numImages; i++)
{
SeekableStream ss = new FileSeekableStream(file[i]);
ImageDecoder decoder = ImageCodec.createImageDecoder("tiff", ss, null);
int numPages = decoder.getNumPages();
for(int j = 0; j < numPages; j++)
{
PlanarImage op = new NullOpImage(decoder.decodeAsRenderedImage(j), null, null, OpImage.OP_IO_BOUND);
images.add(op.getAsBufferedImage());
}
}
TIFFEncodeParam params = new TIFFEncodeParam();
OutputStream out = new FileOutputStream(inputDir + "\\combined.tif");
ImageEncoder encoder = ImageCodec.createImageEncoder("tiff", out, params);
List<BufferedImage> imageList = new ArrayList<BufferedImage>();
for (int i = 1; i < images.size(); i++)
{
imageList.add(images.get(i));
}
params.setExtraImages(imageList.iterator());
encoder.encode(images.get(0));
out.close();
}
catch (Exception e)
{
System.out.println("Exception " + e);
}
}

Doing this with a for cycle

And now a very easy java question....
Object[] objectList={
new Object(name[0], description[0], R.drawable.creep_0),
new Object(name[1], description[1], R.drawable.creep_1),
new Object(name[2], description[2], R.drawable.creep_2),
new Object(name[3], description[3], R.drawable.creep_3),
};
How can i do this dynamically with a for cycle? Thanks!

Creep[] creeps = new Creep[]
{ R.drawable.creep_0, R.drawable.creep_1, R.drawable.creep_2,
R.drawable.creep_3 };
Object[] objectList = new Object[4];
for (int i = 0; i < 4; i++) {
objectList[i] = new Object(name[i], description[i], creeps[i]);
}

ArrayList objectList = new ArrayList();
for (int i = 0; i < 4; i++)
{
Object o = new Object(name[i], description[i], R.drawable.creep_i);
objectList.Add(o);
}