eanCSE115 2018 ProblemSet zhengtao 0008,java- Eclipse Window Help JMobleset-zh ?

Question

eanCSE115 2018 ProblemSet zhengtao 0008,java- Eclipse Window Help JMobleset-zh ?? Algorithms lja. D ProblemSet zh. ProblemSet zh.. Prol roblem Seth bublic class ProblemSet_zhengtao 00080 "q1: Write a public static method naned q1 that takes no parameters and returns a new Arraylist of type Integer containing the values 10, 5, and 5. The order of these values * must be maintained 3 q2: Write a public static method named q2 that takes no parameters and returns à new 5 HashMap with keys of type Integer mapped 6 key-value pairs 171:40, 4:-16, 78:49, 4:9, 12:47) to value of type Integer containing the * q3: Write a public static method named q3 that takes no parameters and returns a new : HashHap with keys of type Integer mapped to values of type Integer containing the s key-value pairs (94:46, 82:-1, 31:-3) 26/ 27 316 q4: Write a public static method named q4 that t Arraytist of type " "total". The order of these values must be maintained akes no parameters and returns a new String containing the values "table, "straw", "county", "towel", and Problems Javadoc Declaration o consoles to display at this time. ConsoleCoverage Writable DOLL

Explanation / Answer

import java.util.ArrayList;

import java.util.HashMap;

public class ProblemSet{

  

   public static ArrayList<Integer> q1 () {

       ArrayList<Integer> list = new ArrayList<>();

       list.add(10);

       list.add(5);

       list.add(5);

      

       return list;

   }

  

  

   public static HashMap<Integer, Integer> q2 () {

       HashMap<Integer, Integer> map = new HashMap<>();

      

       map.put(71,   40);

       map.put(40,   -16);

       map.put(78,   49);

       map.put(40,   49);

       map.put(12,   47);

       return map;

   }

  

   public static HashMap<Integer, Integer> q3 () {

       HashMap<Integer, Integer> map = new HashMap<>();

      

       map.put(94,   46);

       map.put(80,   -1);

       map.put(31,   -3);

      

       return map;

   }

  

   public static ArrayList<String> q4 () {

       ArrayList<String> list = new ArrayList<>();

       list.add("table");

       list.add("straw");

       list.add("country");

       list.add("towel");

       list.add("total");

      

       return list;

   }

}

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