Homework Answers

Create a class for Waterbender, Earthbender, Firebender, and Airbender as subclasses of the superclass Avatar. The subclasses provide their actual implementation, Firebender must return a String containing the phrase "Fire attack!”, Waterbender = “Water attack!”, Airbender = "Air attack!”, and Earthbender = "Stone attack!". Create a testdriver called TestAvatar to demonstrate the classes. Apply the concept of Inheritance and Polymorphism.

Sample Output:

Fire attack!

Water attack!

Air attack!

Stone attack!

Default attack!

John is going through his family photo album.There is a total of N people in the family labeled 0 to N-1.

Find out the number of members of his family who have more than or equal to X children.

Input specification:

Input1:N,denoting the total number of family members.

Input2:X,denoting the minimum number of children a family members should have in order to be included in john’s final set.

Input3:An array of N elements where the ith element denotes the parent of the ith index. If the value of the element is -1,then that family member has no parent.

Example:

Input1:1

Input2:0

Input3:{-1}

Output=1 

In planting field, there are trees in a single row fromleft to right.each tree has avalue V.youcut trees fromleft to right and for each tree ofvalue Vthat you cut,youplant(V+1)% M trees on the right most end with values ranging from 0 to ((V+1)%M)-1.

Initially,there was only one tree with value 2.Find the total number of trees present after cutting K trees.

Example:

Input1:1

Input2:2

Output1:1 

Rob is fond of collecting coins but unfortunately,sometimes he has to sell a coin to get other coins.he puts all his coins one over the other in a column.

(0,i):Add coin with value i to the collection.

(1,0):sell a coin.

Selling a coin:For selling a coin ,he picks up the top coin in the coloumn if he constraint A is satisfied.Constraint A:Rob can only sell the coin if the coin collection value is more than Y.

Upon removal ,the coin collection value goes to the previous value.Initially,with 0 coins ,coin collection value is 0.

Adding a Coin:on adding a coin of value i to the collection the coin collection value increments via the following prodcedure.

If the coin collection had>=X value then current total value is X+i else X+2*i.

Rob needs to find and return the final value of coin collection after Q operations.

Note:Initially,the value X is 0 and not X.

Ex1:

i/p1:10(deciding increment)

i/p2:0(selling coins)

i/p3:1(no of operations)

i/p4:{{0,5}}

o/p:10