Question

java8 函数式编程和lambda的区别

Answer 1

很多编程语言早就引入了Lambda表达式而java语法又比较繁琐,被很多人嫌弃.于是java8新增了特性支持Lambda表达式.例如:不用Lambda表达式写的匿名内部类List names = Arrays.asList("jack", "tom", "jerry");Collections.sort(names, new Comparator() { @Override public int compare(String s1, String s2) { return s2.compareTo(s1); }});采用Lambda表达式简化上面的代码List names = Arrays.asList("jack", "tom", "jerry");Collections.sort(names, (s1, s2) -> s2.compareTo(s1));当然了java8中Lambda表达式还有其他用法,但我比较喜欢它的简洁