Draw a memory map for the code you see on the next page, until the execution reaches the point indicated by the comment /* HERE */.In your diagram:• You must have a stack, heap, and static memory sections • Identify each frame as illustrated by the previous examples.• Draw your variables as they are encountered during program execution. Code: public class Passenger {private String name;private int ticketCost;private StringBuffer luggage;private static final int LUGGAGE_COST = 20;public Passenger(String name, int ticketCost) {this.name = name;this.ticketCost = ticketCost;luggage = new StringBuffer();}public Passenger addLuggage(String desc) {ticketCost += LUGGAGE_COST;luggage.append(desc);return this;}public int getTicketCost() {return ticketCost;}public Passenger reduceCost(int by) {ticketCost -= by;/* HERE */return this;}public String toString() {return "Passenger [name=" + name + ", ticketCost=" + ticketCost + ", luggage=" + luggage + "]";}}public class Driver {public static void inspect(Passenger[] allp, int which) {int cost = allp[which].getTicketCost();allp[which].reduceCost(cost / 2);System.out.println(allp[1]);System.out.println(allp[2]);}public static void main(String[] args) {Passenger laura = new Passenger("Laura", 300);laura.addLuggage("guitar");Passenger tom = new Passenger("Tom", 125);tom.addLuggage("mac").addLuggage("PC");Passenger[] friends = new Passenger[4];friends[1] = laura;friends[2] = tom;inspect(friends, 1);}}
Draw a memory map for the code you see on the next page, until the execution reaches the point indicated by the comment /* HERE */.
In your diagram:
• You must have a stack, heap, and static memory sections
• Identify each frame as illustrated by the previous examples.
• Draw your variables as they are encountered during program execution.
Code:
public class Passenger {
private String name;
private int ticketCost;
private StringBuffer luggage;
private static final int LUGGAGE_COST = 20;
public Passenger(String name, int ticketCost) {
this.name = name;
this.ticketCost = ticketCost;
luggage = new StringBuffer();
}
public Passenger addLuggage(String desc) {
ticketCost += LUGGAGE_COST;
luggage.append(desc);
return this;
}
public int getTicketCost() {
return ticketCost;
}
public Passenger reduceCost(int by) {
ticketCost -= by;
/* HERE */
return this;
}
public String toString() {
return "Passenger [name=" + name + ", ticketCost=" + ticketCost + ", luggage=" + luggage + "]";
}
}
public class Driver {
public static void inspect(Passenger[] allp, int which) {
int cost = allp[which].getTicketCost();
allp[which].reduceCost(cost / 2);
System.out.println(allp[1]);
System.out.println(allp[2]);
}
public static void main(String[] args) {
Passenger laura = new Passenger("Laura", 300);
laura.addLuggage("guitar");
Passenger tom = new Passenger("Tom", 125);
tom.addLuggage("mac").addLuggage("PC");
Passenger[] friends = new Passenger[4];
friends[1] = laura;
friends[2] = tom;
inspect(friends, 1);
}
}
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