ArrayList Sorting Enhanced For Loop Collections Class Auto-boxing Programming AssignmentLabel all...

Question

ArrayList

Sorting

Enhanced For Loop

Collections Class

Auto-boxing

Programming Assignment

Label all program output so that it is clear what is happening! Please don't make me guess.

Do some research on "auto-boxing." What is auto-boxing, and why it is useful? Give an example of a use case. Write a few lines of code that auto-box anintinto anInteger, and un-box anIntegerto anint.

Declare anArrayListof Strings. Add 5 names to the collection. Output the Strings onto the console using anenhanced for loop.

Take a few minutes to examine theJava Collections API(Links to an external site.).Shuffleyour list using a method from the API. Output the shuffled List.Sortthe list, and output the sorted list. Note thatCollections(with an s) is aclass, whileCollectionis aninterface. What does this difference mean to you?

Search for a name that can be found in your list. In which location was it found? Search for a name that is not in the list. What location is reported?

Describe why anequalsmethod and acompareTomethod are required to achieve searching and sorting of the elements of a list. What is the difference, and how might you use each?

Convert your ArrayList to anarrayusingtoArray(). Output the elements of the array. Convert the array back into a list usingasList(). Output the elements of the ArrayList.

Please submit

Your answers to the questions (in a text document, or in comments in your code - either is fine).

Your source code (.java files(s)).

Screenshots showing your program(s) running.

Pulkit · Accepted Answer

java/.idea/.gitignore
# Default ignored files
/shelf/
/workspace.xml
java/.idea/misc.xml
 
   
     
  
java/.idea/modules.xml
 
   
     
       
    
  
java/.idea/workspace.xml
 
   
     
     
     
     
     
  
   
   
     
     
  
   
     
     
     
  
   
   
     
       
       1617299348432
       
       
       1617299348432
    
     
  
java/Desktop.iml
 
   
     
     
       
    
     
     
  
java/Q1.class
public synchronized class Q1 {
    public void Q1();
    public static void main(String[]);
}
java/Q1.java
java/Q1.java
public class Q1 {
  
    public static void main(String[] args)
    {
    // creating an object of Integer class with a value
    Integer integer1 = new Integer(15);
      
    // unboxing the object
    int integer2 = integer1;
      
    // displaying both the values
    System.out.println("Auto-boxing value: " + integer1);
    System.out.println("Unboxing value: " + integer2);
    }
    }
    
    
java/Q1.PNG
java/Q2.class
public synchronized class Q2 {
    public void Q2();
    public static void main(String[]);
}
java/Q2.java
java/Q2.java
import java.util.ArrayList;
public class Q2 {
  
public static void main(String[] args)
{
ArrayList listStrings = new ArrayList();
listStrings.add("John");
listStrings.add("Susan");
listStrings.add("Alice");
listStrings.add("Mary");
listStrings.add("Ralph");
  
System.out.println("Displaying list contents using enhanced for loop: ");
for(String str :

ArrayList Sorting Enhanced For Loop Collections Class Auto-boxing Programming Assignment Label all program output so that it is clear what is happening! Please don't make me guess. Do some research on...

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