public class BoolArray {

    public static void main (String [] args) {
	boolean [] b = new boolean [3];
	
	// print out b (all false values):
	System.out.println("array b before assignment:");
	for (int i = 0; i < b.length; ++i) {
	    System.out.println("b[" + i + "] = " + b[i]);
	}
	
	// change b:
	for (int i = 0; i < b.length; i = i + 2) {
	    b[i] = !b[i];
	}

	// print out b:
	System.out.println("array b after the change:");
	for (int i = 0; i < b.length; ++i) {
	    System.out.println("b[" + i + "] = " + b[i]);
	}
    }

}