Integer.parse(String str) java.lang.NumberFormatException: Errors

Question

I keep getting number format expectations, even though I\'m trimming the strings and they don\'t contain non numerical characters bizarrely it works for some numbers and not

Answer 1

The number you're trying to parse is larger than the max value of an Integer, you would have to use a larger data type like Long.

public static void main(String[] args) {
    System.out.println("Integer max value: " + Integer.MAX_VALUE);
    System.out.println("Long max value: " + Long.MAX_VALUE);
    System.out.println();

    String n = "3020857508";
    Long a = Long.parseLong(n.trim());
    System.out.println(a);
}

Results:

Integer max value: 2147483647
Long max value: 9223372036854775807

3020857508