Convert String to array of integer in java

Question

Outline how a Java program could convert a string such as “1,2,3,4,5” into an array ({1, 2, 3, 4,5})

Answer 1

Use StringTokenizer which will split string by comma and then put those values/tokens in array of integers.

public static int[] getIntegers(String numbers) {
    StringTokenizer st = new StringTokenizer(numbers, ",");
    int[] intArr = new int[st.countTokens()];
    int i = 0;
    while (st.hasMoreElements()) {
        intArr[i] = Integer.parseInt((String) st.nextElement());
        i++;
    }
    return intArr;
}