>>703 仕様も含めて課題の疑問点は普通は先生に聞くものだと思うよ // Nonsense.java public class Nonsense { private int i; private int j; private int k; private int l; public Nonsense(int i, int j, int k, int l) { this.i = i; this.j = j; this.k = k; this.l = l; } public int add() { return i + j + k + l; } public int mul() { return i * j * k * l; } public String concat() { return "" + i + j + k + l; } } // NonsenseUser.java public class NonsenseUser { public static void main(String[] args) { Nonsense nonsense = new Nonsense(1, 2, 3, 4); System.out.println("add: " + nonsense.add() + ", mul: " + nonsense.mul() + ", concat: " + nonsense.concat()); } }
