class A { A() {System.out.println("A");} } class B extends A { B() {System.out.println("B");} } class C extends B { C() {System.out.println("C");} } public class Construct { public static void main(String str[]) { C m = new C(); } }次はエラーがでる.
class A { A(String str) {System.out.println(str);} } class B extends A { B() { System.out.println("B"); } } class C extends B { C() {System.out.println("C");} } public class Construct { public static void main(String str[]) { C m = new C(); } }