Java Basic Interface Exercises

Write 2 interfaces: Interfacea and INTERFACEB; there is a method void in the interface interfacea

Printcapitalletter (); In interface Interfaceb there is a method void Printlowercaseletter ();

After writing a class print implementation interface Interfacea and INTERFACEB, requires the Printcapitalletter () method

Implements the output capital English alphabet function, the Printlowercaseletter () method implements the output lowercase English

The function of the alphabet. Write a main class E, create the Print object in the main method of the primary class E, and assign

The value given to Interfacea is variable A, object A calls the Printcapitalletter method, and finally in the main class E

The Main method creates a print object and assigns a value to the variable B of INTERFACEB, which is called by object B

Printlowercaseletter method.

Package com.chuoji.text01;  Public Interface interfacea {    void  printcapitalletter ();        }

Package com.chuoji.text01;  Public Interface interfaceb {    void  printlowercaseletter ();    }

Package com.chuoji.text01; Public classPrint implements Interfacea, Interfaceb {@Override Public voidPrintlowercaseletter () {System. out. println ("abcdefghijklmnopqistuvwxyz"); } @Override Public voidPrintcapitalletter () {System. out. println ("ascdefghijklmnopqrstuvwxyz"); }}

Package com.chuoji.text01;  Public class E {    publicstaticvoid  main (string[] args) {        interfacea a=  New  Print ();        Interfaceb b=new  Print ();        B.printlowercaseletter ();        A.printcapitalletter ();            }}

Java Basic Interface Exercises