用Function接口和Lambda表达式转换字符串为整数

package _5_25;

 

 

import java.util.function.Function;

 

public class InterfaceFunction {

public static void change(String s, Function<String, Integer> fun) {

int in = fun.apply(s);

System.out.println(in);

}

 

public static void main(String[] args) {

String s = "1234567";

change(s, str -> Integer.parseInt(s));

}

}