// B000000上戸彩 class Quiz4{ public static void main (String[] args){ int score = Integer.parseInt(args[0]); String grade; if( 90<=score && score<=100){ grade="秀"; } else if ( 80<=score && score< 90){ grade="優"; } else if ( 70<=score && score< 80){ grade="良"; } else if ( 60<=score && score< 70){ grade="可"; } else if ( 0<=score && score< 60){ grade="不可"; } else if (score <0 || 100< score); grade="不正確"; } System.out.println(grade); } }