/*
	Demonstrate a block of code.
	
	Call this file BlockDemo.java.
*/
class BlockDemo {
	public static void main(String args[]) {
	double i, j, d;
	
	i = 5;
	j = 10;
	
	// the target of this if is a block
	if(i != 0) {
		System.out.println("i does not equal zero");
		d = j / i;
		System.out.print("j / i is " + d);
		}
	}
}

Create BlockDemo.java