Steps to make the .jar file

Steps to make the .jar file

Step 1: - prepare the .class file by the javac these are the .class file that we want to move in the .jar file.

               C:\java>javac abc.java

.class will be generated.

Step 2: -Execute the jar command

command to make jar file

Step 3: - After creating the sample.jar file just place it in the jre\lib\ext folder.

Step 4: - Delete the .class file from the current directory

Step 5: - Run the program java Test

                                                That contains main method

Step 6: - System class loader becomes fail to load Test.class but extended class loader will load successfully from 

            C:\Program Files\java\jdk1.8.0\jre\bin\ext\sample.jar