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package edu.javase.buffer;

interface

faces {

public

void

facefun1();

public

int

facefun2();

public

String facefun3();

}

class

demoface implements faces {

@Override

public

void

facefun1() {

System.

out

.println(

"

实现接口 facefun1

"

);

}

@Override

public

int

facefun2() {

System.

out

.println(

"

实现接口 facefun2

"

);

return

0

;

}

@Override

public

String facefun3() {

System.

out

.println(

"

实现接口 facefun3

"

);

return

null

;

}

}

public

class

demointerface {

public

static

void

main(String[] args) {

demoface dd

=

new

demoface();

dd.facefun1();

dd.facefun2();

dd.facefun3();

}

}

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