Java Certification Exam Guide/McGrawwHill-JavaCertificationExamGuide.iso/pc/Web Links and Code/code/chap4/ch0402.java

Java Source | 1997-04-19 | 501 b | 18 lines

public class ch0402 {
    public static void main(String[] args) {
        Pi pi = new Pi();

        System.out.println("before: pi is " + pi);
        zero(pi);
        System.out.println("after: pi is " + pi);
    }

    static void zero(Pi arg) {
        System.out.println("top of zero: arg is " + arg);
        arg.value = 0.0;
        System.out.println("middle of zero: arg is " + arg);
        arg = null;
        System.out.println("bottom of zero: arg is " + arg);
    }
}