Triangle.java

public class Triangle {
    private double area;
    private int height;
    private int length;

    public static void main(String[] args) {
        int x = 0;
        Triangle[] ta = new Triangle[4];

        while (x < 4) {
            ta[x] = new Triangle();
            ta[x].height = (x + 1) * 2;
            ta[x].length = x + 4;
            ta[x].setArea();
            System.out.print("triangle " + x + ", area");
            System.out.println(" = " + ta[x].area);
            x = x + 1;
        }
        int y = x;
        x = 27;
        Triangle t5 = ta[2];
        ta[2].area = 343;
        System.out.print("y = " + y);
        System.out.println(", area t5 = " + t5.area);
    }

    private void setArea() {
        area = (height * length) / 2;
    }
}