小编Nik*_*mbt的帖子

为什么将一个参数的方法引用作为期望类型的参数（BiConsumer抽象方法需要两个参数）传递是合法的？

例：

class Experiment {

    private String name;

    public Experiment(String name) {
        this.name = name;
    }

    public void oneParamMethod(Object o) {
        System.out.println(this.name + " and " + o);
    }

    public <T, S> void executeBiConsumer(BiConsumer<T, S> biCon, T in1, S in2) {
        biCon.accept(in1, in2);
    }

    public static void main(String[] args) {

        // notice that the name is "INSTANCE", but it won't be printed out
        Experiment exp = new Experiment("INSTANCE");

        // executeBiConsumer expects a functional of two params but is …