Complete the Javadoc comments for the following method:    1     Computes the number of hours practiced on an instrument   based on the pages of sheet music.     2   sheetMusic The number of pages of music     3   Method returns how long instrument has been played */ public String practice( int sheetMusic ) {     return String.format(“Practiced %s for %.2f hours”, this.instrument, sheetMusic * 0.15); }    1  : [1]   2  : [2]   3  : [3]

Analyze the following code and indicate, for each line, whether autoboxing, unboxing, or neither occurs when the assignment operator is evaluated: boolean b = new Boolean(true); //  1   occursBoolean a = b; //  2   occurs   1   : [1]   2   : [2]

                . ‘  .           ‘ .( ‘.) ‘     _   (‘-.)’ (`’.) ‘     | (- -(. ‘) WRAPPER (-) ‘  .–`+’-. .  (‘ CLASSES ‘) .  |`—-‘|   (‘ .) – (‘. )  | /..\ |    . (‘ `.  )   |\./\.\|      ` .  `   |./G \/|  |.\ T/.|  `-._/.-‘

Assume class Child inherits from class Parent. We can instantiate a concrete Child class as long as an abstract Parent class exists by writing the following statement:  Parent p = new Child(); 

Analyze the following code and indicate, for each line, whether autoboxing, unboxing, or neither occurs when the assignment operator is evaluated: boolean b = new Boolean(true); //  1   occursBoolean a = b; //  2   occurs   1   : [1]   2   : [2]

Assume class Child inherits from class Parent. We can instantiate a concrete Child class as long as an abstract Parent class exists by writing the following statement:  Parent p = new Child(); 

Given 3 classes (Archer, Adventurer, and RPG), Archer can inherit from both Adventurer and RPG with the following syntax: public class Archer extends Adventurer, RPG { /* valid class definition */}

Given the following class hierarchy, identify whether the method price is overloaded, overridden, or neither by the subclass: public class Drink {   public void price(int p, String n) { /* implemented */ } } public class Pepsi extends Drink {   public void price(int price, String name) { /* implemented */ } } 

public class SportsEquipment {      public SportsEquipment () {          System.out.println(“SPORTS”);      } } public class Ball extends SportsEquipment {     public Ball() {     super();         System.out.println(“BALL”);      } } public class BasketBall extends Ball {     public BasketBall () {         System.out.println(“BASKETBALL”);      } }  Given the class definitions above, what is printed to the console when the following lines of code are executed? Assume the code compiles and runs (i.e. ignore typos). Ball b = new Ball(); BasketBall bb = new BasketBall(); 

Given the following class hierarchy, identify whether the method introduce is overloaded, overridden, or neither by the subclass: public class Person {    public void introduce(String name, int height) { /* implemented */ }}public class Student extends Person {   public void introduce(String name, int height, String major) { /* implemented */ }}