Copying objects is a common Java programming operation that has one ... getCategory() { return category; } } Notice in this code that a copy was not made when we changed the Category object.

It can directly use Java code. UNIX shells have a 4GL ... noHidden echo into jarFile under 'src/'; copy '*' in docDor recursive noHidden echo into jarFile under 'doc/'; jarFile.close(); XML SAX ...

By doing so, you’ll make it less likely an adventurous user would code against a class you didn’t want them to. Hooking in several scripting languages into your Java program is remarkable ...