Practical Coding in Java

//
// Transform.java
//


import java.util.*;


public class Transform
{
    public static int[] stringLengths(String[] names)
    {
        // transform an array of Strings into an array of ints
        // containing the lengths of those Strings

        int[] result = new int[names.length]; // create empty array

        for (int i=0; i<result.length; i++)
            result[i] = names[i].length();

        return result;
    }

    public static void main(String[] args)
    {
        String[] names = {"The", "quick", "brown", "fox"};

        System.out.print("names: ");
        for (String name : names)
            System.out.print(name + " ");
        System.out.println();

        int[] lengths = stringLengths(names);

        System.out.print("stringLengths: ");
        for (int x : lengths)
            System.out.print(x + " ");
        System.out.println();
    }
}