L05

UsingArrays.java

public class UsingArrays {
    public static void main(String[] args) {
        int[] arr = { 3, 7, 13, 18 };

        for (int i = 0; i < arr.length; i++)
            System.out.println(arr[i] + " squared is " + arr[i] * arr[i]);

        for (int i = 0; i < arr.length; i++) {
            if (arr[i] < 10)
                System.out.println(arr[i] + " is less than 10");
            else if (arr[i] <= 15)
                System.out.println(arr[i] + " is greater than 10 and less than 15");
            else
                System.out.println(arr[i] + " is greater than 15");
        }
    }
}

ArrayTest.java

public class ArrayTest {
    public static void main(String[] args) {
        int[] arr = { 34, 2, 14, 34, 58, 4 };

        for (int i = 0; i < arr.length; i++)
            System.out.println(arr[i]);

        int max = 0;
        for (int i = 0; i < arr.length; i++)
            if (max < arr[i])
                max = arr[i];
        System.out.println("The max is " + max);

        int sum = 0;
        for (int i = 0; i < arr.length; i++)
            sum = sum + arr[i];
        System.out.println("The average is " + sum / arr.length);

        int[] newArr = new int[3];

        newArr[0] = arr[1];
        newArr[1] = arr[2];
        newArr[2] = arr[3];

        for (int i = 0; i < newArr.length; i++)
            System.out.println(newArr[i]);
    }
}