内部类形式的继承类

public class test {private final int a;public test(int a) {this.a = a;}private int getA() {return a;}public void exec() {new test(1) {public void print() {System.out.println(getA());// 0}}.print();}public static void main(String[] args) {new test(0).exec();}}

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public class test {private final int a;public test(int a) {this.a = a;}public int getA() {return a;}public void exec() {new test(1) {public void print() {System.out.println(getA());// 1}}.print();}public static void main(String[] args) {new test(0).exec();}}

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差别在于getA()方法的可见性