todo apple两轮白人教你ci/cd

import java.io.*;
import java.util.*;
import java.util.stream.*;


class Solution {
  // How many things can you find wrong with this method?
  public static  List cleanList(List inputVals, List badVals) {
    if (inputVals==null) {
      return null;
    }
    if (badVals==null) {
      return new ArrayList(inputVals);
    }
//    List result = new ArrayList();
//      for (T input: inputVals) {
//        if (!badVals.contains(input))
//            result.add(input);
//      }
    
    List result1 = inputVals.stream()
      .filter(c -> !badVals.contains(c))
      .collect(Collectors.toList());
    return result1;

  }
  public static void main(String[] args) {
    ArrayList strings = new ArrayList();
    strings.add("Alpha");
    strings.add("Beta");
    strings.add("Beta");
    strings.add("Delta");
    ArrayList bads=new ArrayList();
    bads.add("Beta");
    bads.add("Gamma");

    ArrayList ints = new ArrayList();
    for (int i=10;i<15;i++) ints.add(i);
    ArrayList badints = new ArrayList();
    badints.add(12); badints.add(24);

    System.out.println("==========");
    System.out.println(strings);
    System.out.println(ints);
    System.out.println("==========");
    System.out.println(cleanList(strings,bads));
    System.out.println(cleanList(ints,badints));
    System.out.println(cleanList(ints,null));
    System.out.println(cleanList(null,bads));
    // What should be done with the following line?
    //System.out.println(cleanList(strings,badints));
  }
}