Q: What is venus% in the text book? eg. venus% javac Hello.javaA: venus% is the operating system prompt. The command begins with javac. Q: Though the program HelloFromVenus.java compiles, the picture of Venus is not visible. A: The image file is loaded at runtime. Make sure you download the Venus.gif file form the web site. It must be present in the same directory of the .class file.
Q: In Blink.java, the Math.random() method from the Math class is used. However, the import statements do not include java.lang.*, where Math resides. Why does this work without giving a full path to the package when calling the Math class? A: java.lang is the only package that is always imported by default.