在java中我们可以实现一个interface像这样的匿名类:importjava.util.function.Predicate;publicclassTest{publicstaticvoidmain(String[]args){System.out.println(testIf("",newPredicate(){@Overridepublicbooleantest(Strings){returns.isEmpty();}}));}publicstaticbooleantestIf(Tt,Predicatepredicate){returnpredicate.test(t);}}