jls4_3.java

class Point {
	int x, y;
	Point() { System.out.println("default"); }
	Point(int x, int y) { this.x = x; this.y = y; }
	// A Point instance is explicitly created at class initialization time:
	static Point origin = new Point(0,0);
	// A String can be implicitly created by a + operator:
	public String toString() {
		return "(" + x + "," + y + ")";
	}
}
class Test {
	public static void main(String[] args) {
		// A Point is explicitly created using newInstance:
		Point p = null;
		try {
			p = (Point)Class.forName("Point").newInstance();
		} catch (Exception e) {
			System.out.println(e);
		}
		// An array is implicitly created by an array constructor:
		Point a[] = { new Point(0,0), new Point(1,1) };
		// Strings are implicitly created by + operators:
		System.out.println("p: " + p);
		System.out.println("a: { " + a[0] + ", "
										   + a[1] + " }");
		// An array is explicitly created by an array creation expression:
		String sa[] = new String[2];
		sa[0] = "he"; sa[1] = "llo";
		System.out.println(sa[0] + sa[1]);
	}
}