interface interface01
{
double ID = 3.141592653589777962626;
void fun1();
}
interface interface02
{
int r = 2;
void fun2();
}class class02 implements interface01,interface02
{
public void fun1()
{
System.out.print( " 面积是: " );
}
public void fun2()
{
System.out.print( " 哈哈 好好学java吧!");
}
class02 Object = new class02();
public static void main(String args[])
{
fun1();
fun2();
int R = class02.r;
double I = interface01.ID ;
double S = I * R *R;
System.out.println( S );
}
}fun1();
fun2();
这两句不管放哪都出错 这是为什么啊 怎样调用这两个函数啊 谢了
{
double ID = 3.141592653589777962626;
void fun1();
}
interface interface02
{
int r = 2;
void fun2();
}class class02 implements interface01,interface02
{
public void fun1()
{
System.out.print( " 面积是: " );
}
public void fun2()
{
System.out.print( " 哈哈 好好学java吧!");
}
class02 Object = new class02();
public static void main(String args[])
{
fun1();
fun2();
int R = class02.r;
double I = interface01.ID ;
double S = I * R *R;
System.out.println( S );
}
}fun1();
fun2();
这两句不管放哪都出错 这是为什么啊 怎样调用这两个函数啊 谢了
interface interface01
{
double ID = 3.141592653589777962626;
void fun1();
}
interface interface02
{
int r = 2;
void fun2();
}class class02 implements interface01,interface02
{
public void fun1()
{
System.out.print( " 面积是: " );
}
public void fun2()
{
System.out.print( " 哈哈 好好学java吧!");
}
public static void main(String args[])
{
class02 Object = new class02();
int R = Object.r;
double I = interface01.ID ;
double S = I * R *R;
Object.fun1();
Object.fun2();
System.out.println( S );
}
}这样调用就可以了