常用函数式接口Predicate筛选条件的练习

 

package LambdaTest.LambdaTest05;

import java.util.ArrayList;
import java.util.function.Predicate;

/**
 * FileName: PredicateTest03
 * Author:   lps
 * Date:     2022/4/9 18:52
 * Sign:刘品水 Q：1944900433
 */
public class PredicateTest03 {
    public static void main(String[] args) {
        String[] strArray = {"刘品水,21", "张伟,59", "张小飞,42", "哈哈嗨,34"};
        //Integer.parseInt(str0.split(",")[1]))
        ArrayList<String> strings = checkString(strArray, s -> s.split(",")[0].length() > 2,
                s -> Integer.parseInt(s.split(",")[1]) > 20);
        for (String s : strings) {
            System.out.println(s);
        }


    }

    private static ArrayList<String> checkString(String[] strArray, Predicate<String> pre01, Predicate<String> pre02) {
        ArrayList<String> arrayList = new ArrayList<>();
        for (String str : strArray) {
            if (pre01.and(pre02).test(str)) {
                arrayList.add(str);
                //String.valueOf(strArray)
            }

        }
        return arrayList;

    }

}