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Using classes stored inside a package in same directory as the Java program

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• Using classes that is stored inside a package in same directory as the Java program
  • Consider the following scenario:

    Notes:

    The package myLib is stored inside the directory Dir A Java program that uses classes in the package myLib is also stored inside the directory Dir

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  • To enable a Java program to access methods inside the package myLib, the Java program must import the necessary classes:

    The Java program must import the necessary classes using: import myLib.ClassA; or import myLib.*; // all classes in package myLib Illustrated:

    Example:

    import myLib.ClassA; // Or: import myLib.*; public class myProg { public static void main(String[] args) { ClassA.Method81(); // Use method inside ClassA } }

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  • Example Program: (Demo above code)                                                
    • The ClassA.java Prog file: click here
    • The myProg.java Prog file: click here

    How to run the program:

    mkdir /home/cs170000/demo mkdir /home/cs170000/demo/myLib Right click on ClassA.java and save in /home/cs170000/demo/myLib Right click on myProg.java and save in /home/cs170000/demo cd /home/cs170000/demo To compile: ClassA.java (of package myLib):   javac myLib/ClassA.java myProg.java (not in a named package):   javac myProg.java To run:          java myProg (Because myProg is not inside a named package)