静的内部クラス、ローカル内部クラス、匿名内部クラス
2112 ワード
// , ,
// :
public class InnerClass {
public A a(){
class AA implements A{
int a=3;
@Override
public int value() {
System.out.print(a*4);
return 3*a;
}
}
return new AA();
}
}
public class Test {
/**
* @param args
*
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
InnerClass innerClass=new InnerClass();
A aa=innerClass.a();
aa.value();
}
}
public interface A {
int value();
}
// :
public class InnerClass {
public void a(boolean b) {
if (b) {
class AA implements A {
int a = 3;
@Override
public int value() {
System.out.print(a * 4);
return 3 * a;
}
}
A hiA=new AA();
hiA.value();
}
}
public class Test {
/**
* @param args
*
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
InnerClass innerClass=new InnerClass();
innerClass.a(true);
}
}
public interface A {
int value();
}
}
//
public class InnerClass {
public A a() {
return new AA(){
private int i=9;
public int value() {
System.out.println(i);
return i;
}
};
}
public class Test {
/**
* @param args
*
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
InnerClass innerClass=new InnerClass();
A dAa= innerClass.a();
dAa.value();
}
}
public interface A {
int value();
}
public class AA implements A {
@Override
public int value() {
// TODO Auto-generated method stub
return 0;
}
}
}