Consider the following class: public class MergeSequence {private ArrayList valu
ID: 3938911 • Letter: C
Question
Consider the following class: public class MergeSequence {private ArrayList values; public MergeSequence () {values = new ArrayList();} public void add(int n) {values.add(n);} public String toString() {return values. toString ();}} Add a method public MergeSequence append (MergeSequence other) that creates a new sequence, appending this and the other sequence, without modifying either sequence. For example, if sequence is: 14 9 16 and b is the sequence 9 7 4 9 11 then the call a append(b) returns the sequence 14 9 16 9 7 4 9 11 without modifying a or b. Use JUnit testing framework to verify the functionality of your MergeSequence Class.Explanation / Answer
Hi, Please find my implementation.
Please let me know in case of any issue.
import java.util.ArrayList;
public class MergeSequence {
private ArrayList<Integer> values;
public MergeSequence(){
values = new ArrayList<>();
}
public void add(int n){
values.add(n);
}
public String toString(){
return values.toString();
}
//1
public MergeSequence append(MergeSequence other){
MergeSequence result = new MergeSequence();
// adding current object values
for(Integer x : this.values){
result.add(x);
}
// adding other values
for(Integer x : other.values){
result.add(x);
}
// returning result
return result;
}
}
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