class Sphere{
double radius;
Sphere( double r ) {
radius = r;
}
double calcVol( ) {
return 4.0 * Math .
PI * radius
* radius
* radius
/ 3.0 ; }
}
//(Sphereクラスを継承しているStarクラスを作成;必要なインスタンスフィールド, インスタンスメソッド, コンストラクタを設定)
class Space{
public static void main
( String [ ] args
) { Star s = new Star( 696010.0 , "太陽" , "Sun" ) ;
double v = s.calcVol ( ) ;
System .
out .
printf ( "%sの体積は%.1e立方kmです。¥n" , s.
showName ( ) , v
) ; s.explainStar ( ) ;
}
}
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compilation info
Main.java:14: error: cannot find symbol
Star s = new Star(696010.0, "??", "Sun");
^
symbol: class Star
location: class Space
Main.java:14: error: cannot find symbol
Star s = new Star(696010.0, "??", "Sun");
^
symbol: class Star
location: class Space
2 errors
stdout