>>194 問題1はstaticをpublicに戻せばいいんじゃね? public class Grade { public static void main(String[] args) { //Data suzuki = new Data("Suzuki", 90); Data data = new Data("Kimura", 85);//修正 //System.out.println("Suzuki="+suzuki.getData()); System.out.println(data.getName() + "=" + data.getGrade());//修正 } } class Data { private String name;private int grade; public Data(String name_, int grade_) {//問題2 name = name_;//問題2 grade = grade_;//問題2 } public int getGrade() {//修正 return grade; } //public int getData(){ public String getName() {//付加 return name;//付加 }//付加 }