Java - convert character array to integer array

import java.util.Arrays;

​

public class Example1 {

​

    public static void main(String[] args) {

        char[] charArray = {'a', 'b', 'c'};

        int[] intArray = asIntArray(charArray);

​

        // [97, 98, 99]

        System.out.println(Arrays.toString(intArray));

    }

​

    public static int[] asIntArray(char[] charArray) {

        int[] result = new int[charArray.length];

        Arrays.setAll(result, i -> (int) charArray[i]);

        return result;

    }

}

[97, 98, 99]

import java.util.Arrays;

​

public class Example2 {

​

    public static void main(String[] args) {

        char[] charArray = {'a', 'b', 'c'};

        Integer[] integerArray = asIntegerArray(charArray);

​

        // [97, 98, 99]

        System.out.println(Arrays.toString(integerArray));

    }

​

    public static Integer[] asIntegerArray(char[] charArray) {

        Integer[] result = new Integer[charArray.length];

        Arrays.setAll(result, i -> (int) charArray[i]);

        return result;

    }

}

[97, 98, 99]

import java.util.Arrays;

​

public class Example3 {

​

    public static void main(String[] args) {

        Character[] characterArray = {'a', 'b', 'c'};

        int[] intArray = asIntArray(characterArray);

​

        // [97, 98, 99]

        System.out.println(Arrays.toString(intArray));

    }

​

    public static int[] asIntArray(Character[] charArray) {

        return Arrays.stream(charArray).mapToInt(i -> (int) i).toArray();

    }

}

[97, 98, 99]

import java.util.Arrays;

​

public class Example4 {

​

    public static void main(String[] args) {

        Character[] characterArray = {'a', 'b', 'c'};

        Integer[] integerArray = asIntegerArray(characterArray);

​

        // [97, 98, 99]

        System.out.println(Arrays.toString(integerArray));

    }

​

    public static Integer[] asIntegerArray(Character[] charArray) {

        return Arrays.stream(charArray)

                .mapToInt(Integer::valueOf)

                .boxed()

                .toArray(Integer[]::new);

    }

}

[97, 98, 99]