JAVA - Double split string and convert to integer

Question

Hello i tried many ways to complete this but i failed. Could you help me ? I need double split one is "\\n" and second is "|". In textArea is string 350|450\\n 444|452\\n and so one. There are mouse coordinates. X|Y in int array i need

array[0]= x coord;
array[1]= y coord;
array[2]= x coord;
array[2]= y coord;

So i have string in textarea.I split that by "\\n"

String s[]= txtArea.getText().split("\\n");

This is one split and in textarea i have something like 150|255 this is my mouse coordinates x|y. So i need next split "|".

String s2[] = s[i].split("|");

After that

int [] array = new [s.length*2];

And some method for

while(!(s[j].equals("|")))
array[i] = Integer.parseInt(s[j]);

I tried something like that-

for(String line : txtArea.getText().split("\\n")){
            arrayXY = line.split("\\|");
            array = new int[arrayXY.length];
        }

Thank you a lot for answers :) Have a nice day.

Answer 1

This can be solved easily using regex:

String[] split = input.split("\\||\n");

split will then contain the single numbers from the input.

Answer 2

Use Scanner . It is always preferred over String.split() .

Your code would then reduce to:

Scanner scanner = new Scanner(txtArea.getText());
scanner.useDelimiter("\\||\\n");          // i.e. | and the new line
for (int i = 0; i < array.length; i++) {  // or use the structure you need
    array[i] = scanner.nextInt();
}

Also, don't forget to import java.util.Scanner;