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sergey [27]
3 years ago
6

Write a public static method called getPIDs that has a parameter of type Map called nameToPID (keys are student names and values

are student PIDs). It should return a HashSet containing all PIDs in nameToPID.
Computers and Technology
1 answer:
Rasek [7]3 years ago
4 0

Answer:

Java program is explained below

Explanation:

import java.util.HashSet;

import java.util.Map;

import java.util.TreeMap;

public class TruckRace1 {

   public static HashSet<String> getPIDs (Map<String,String>nameToPID ){

       HashSet<String> pidSet = new HashSet<>();

       for(String ids: nameToPID.values()){

           pidSet.add(ids);

       }

       return pidSet;

   }

   public static void main(String[] args) {

       Map<String,String> pids = new TreeMap<>();

       pids.put("John","123");

       pids.put("Jason","124");

       pids.put("Peter","125");

       pids.put("Alice","126");

       pids.put("Peny","129");

       HashSet<String> ids = getPIDs(pids);

       for(String id:ids){

           System.out.println(id);

       }

   }

}

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Answer: b) False

Explanation:

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Write a Java class called BankAccount (Parts of the code is given below), which has two private fields: name (String) and balanc
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Answer:

Here is the Bank Account class:

public class Bank Account {   //class definition

   private String name;  //private String type field to hold name

   private double balance;    // private double type field to hold balance

    public Bank Account(String name, double balance) {  // parameter constructor that takes

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   public void withdraw(double amount) {  //method to withdraw amount

 balance = balance - amount;   }   //subtracts the amount causing the current balance to decrease

    public String toString() {  // to display the name and current balance

              return name + " , $" + balance; }  } //returns the name and the current balance separated by a comma and dollar

Explanation:

The explanation is provided in the attached document due to some errors in uploading the answer.

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