lambda优化

一、实现类

class Like implements ILike{
    @Override
    public void lambda() {
        System.out.println("i like lambda");
    }
}
​
ILike like = new Like();
like.lambda();

二、静态内部类

static class Like2 implements ILike{
    @Override
    public void lambda() {
        System.out.println("i like lambda2");
    }
}
​
ILike like = new Like2();
like.lambda();

三、局部内部类

class Like3 implements ILike{
    @Override
    public void lambda() {
        System.out.println("i like lambda3");
    }
}
​
ILike like = new Like3();
like.lambda();

 

四、匿名内部类

ILike like=new ILike() {
    @Override
    public void lambda() {
        System.out.println("i like lambda4");
    }
};
like.lambda();

 

五、lambda方法

ILike like=()->{
    System.out.println("i like lambda5");
};
like.lambda();