How to remove a value from an array

Similar to this here for example? I copied the answer over for easy access. Removing an element from an Array (Java)

array = ArrayUtils.removeElement(array, element)

http://commons.apache.org/proper/commons-lang/javadocs/api-2.6/org/apache/commons/lang/ArrayUtils.html

You can use System.arraycopy(src, srcPos, dest, destPos, length); method.

This method will not create new array. It will modify the existing array. See the below code:

String[] arr = {"Anil","Stack","Overflow","Reddy"};
  int size = arr.length;
  int index = 2;
  System.arraycopy(arr, index+1, arr, index, size-index-1); // modified the existing array, New Array will not create.
  arr[--size] = null;
  System.out.println(Arrays.toString(arr)); 

You know which element you're removing, so declare a new array whose length is 1 element smaller than your original array from the String.split()

Then using System.arraycopy(), copy the elements you want to keep from the original array into your new array.

public static void main(String[] args) throws Exception {
    String data = "item = 0\tDwarf_remains\tThe_body_of_a_Dwarf_savaged_by_Goblins.\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0";

    System.out.println("Before: ");
    System.out.println(data);
    System.out.println();

    String[] pieces = data.split("\t");
    String[] newArray = new String[pieces.length - 1];
    // Copy index 0 & 1
    System.arraycopy(pieces, 0, newArray, 0, 2);
    // Skip index 2, and copy the rest
    System.arraycopy(pieces, 3, newArray, 2, pieces.length - 3);

    System.out.println("After: ");
    System.out.println(String.join("\t", newArray));
}

Results:

Before: 
item = 0    Dwarf_remains   The_body_of_a_Dwarf_savaged_by_Goblins. 0   0   0   0   0   0   0   0   0   0   0   0   0   0   0

After: 
item = 0    Dwarf_remains   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0

Otherwise you can use a for loop to copy the elements from the original array to your new array, skipping any element(s) that you don't want in the new array.

int newArrayIndex = 0;
for (int i = 0; i < pieces.length; i++) { 
    // Skip index 2       
    if (i == 2) {
        continue;
    }

    newArray[newArrayIndex] = pieces[i];
    newArrayIndex++;
}

Here is the working code : Tested on your file.

Just change the file path.

Issue was '\t' which is tab instead of '\\t' which is a string '\t' and not a tab.

public static void main(String[] args) {

// The name of the file to open.
String fileName = "D:\\64416.txt";

// This will reference one line at a time
String line = null;

try {
    // FileReader reads text files in the default encoding.
    FileReader fileReader =
            new FileReader(fileName);

    // Always wrap FileReader in BufferedReader.
    BufferedReader bufferedReader =
            new BufferedReader(fileReader);

    FileWriter fw = new FileWriter("D:\\item2.txt"); //for Writing the file

    while ((line = bufferedReader.readLine()) != null) {
        String[] values = line.split("\t");
        List<String> list = new ArrayList<String>(Arrays.asList(values));
        list.remove(2);  // removing value from index 2
        for (String string : list) {
            fw.write(string + "\t"); //tab to be included
        }
        fw.write("\n");
        System.out.println(values[2]);
    }

    // Always close files.
    bufferedReader.close();
    fw.close();
} catch (FileNotFoundException ex) {
    System.out.println("Unable to open file '" + fileName + "'");
} catch (IOException ex) {
    System.out.println("Error reading file '" + fileName + "'");
    // Or we could just do this:
    // ex.printStackTrace();
}
}