Question

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Java: Reading integers from a file into an array

I want to read integer values from a text file say contactids.txt. in the file i have values like

12345
3456778
234234234
34234324234

i Want to read them from a text file…please help

Answer 1

You might want to do something like this (if you’re using java 5 and more)

Scanner scanner = new Scanner(new File("tall.txt"));
int [] tall = new int [100];
int i = 0;
while(scanner.hasNextInt())
{
     tall[i++] = scanner.nextInt();
}

Via Julian Grenier from Reading Integers From A File In An Array