Java Programming Ideas Fourth edition sixth chapter personal practice

Exercise 1: (1) Create a class in a package that creates an instance of the class outside the package where the class is located.

Import Mil.oms.main.test.Test; Public   class  maintest {public             static void Main (String args[]) {        Test test=new test ();    }    /**     Run result test () instantiation ...     

Package Mil.oms.main.test;public class Test{public Test () {System.out.println ("Test () instantiation ...");}

Exercise 2: (1) rewrite the code snippet in this section as a complete program, and verify the actual conflicts that occurred.

Import mil.oms.main.test.vector;import java.util.*;p ublic   class  maintest {public             static void main ( String args[]) {        vector vector=new vector ();    Java.util.Vector vector1=new java.util.Vector ();    }}  

Package Mil.oms.main.test;public class Vector{public vector () {System.out.println ("vector () instantiation ...");}

Java Programming Ideas Fourth edition sixth chapter personal practice