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Create a Program to Create Number Sequence in Java Assignment Solution.


Instructions

Objective
Write a program to create number sequence in java language.

Requirements and Specifications

program to create number sequence in java
program to create number sequence in java 1

Source Code

PAIR

import java.util.Objects;

/**

* Generic pair that hold two pieces of data

*/

public class Pair {

private final T fst;

private final V snd;

public Pair(T fst, V snd) {

this.fst = fst;

this.snd = snd;

}

public T getFst() {

return fst;

}

public V getSnd() {

return snd;

}

@Override

public boolean equals(Object o) {

if (this == o) return true;

if (o == null || getClass() != o.getClass()) return false;

Pair pair = (Pair) o;

return fst.equals(pair.fst) && snd.equals(pair.snd);

}

@Override

public int hashCode() {

return Objects.hash(fst, snd);

}

}

SEQUENCE

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

/**

* Represents a sequence of Integers.

* Backed by a list of integers.

* Defines two iterables, one that iterates over the

* backing list normally, elementwise.

* The other iterates over the list pairwise.

*/

public class Sequence {

private final List sequence;

public Sequence(List sequence) {

this.sequence = sequence;

}

public void add(Integer i) {

sequence.add(i);

}

public Integer get(int index) {

return sequence.get(index);

}

public int size() {

return sequence.size();

}

public Iterable elementWiseIterator() {

return new Iterable<>() {

@Override

public Iterator iterator() {

return sequence.iterator();

}

};

}

/**

* Defines a pairwise iterator for the sequence.

* Pairwise iteration iterates over the list in pairs.

* For example with the following sequence: [1,2,3]

* Pairwise iteration would first return (1,2) then (2,3)

* then stops.

*/

public Iterable> pairWiseIterator() {

// TODO: Replace return null with your code

// Create list of Pairs

List> pairs = new ArrayList>();

for(int i = 0; i < sequence.size()-1; i++)

{

int x = sequence.get(i);

int y = sequence.get(i+1);

Pair pair = new Pair(x,y);

pairs.add(pair);

}

Iterable> iterable = (Iterable>)pairs;

return iterable;

}

@Override

public String toString() {

return sequence.toString();

}

}