﻿ Java - Convert a linked list to array list

Java: Convert a linked list to array list

Java Collection, LinkedList Exercises: Exercise-23 with Solution

Write a Java program to convert a linked list to an array list.

Sample Solution:-

Java Code:

``````import java.util.*;

public class Exercise23 {
public static void main(String[] args) {
// create an empty linked list

//Convert a linked list to array list

for (String str : list){
System.out.println(str);
}
}
}
``````

Sample Output:

```Original linked list: [Red, Green, Black, White, Pink]
Red
Green
Black
White
Pink```

Pictorial Presentation:

Flowchart:

Java Code Editor:

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Java: Tips of the Day

Oddness Check

Is it possible to use this code to accurately determine the odd number?

```public boolean oddOrNot(int num) {
return num % 2 == 1;
}
```

I hope you noticed a trick. If we decide to check a negative odd number in such a way (-5, for example), the remainder of the division will not be equal to one (what does it mean?) Therefore, use a more accurate method:

```public boolean oddOrNot(int num) {
return (num & 1) != 0;
}
```

It not only solves the problem of negative numbers, but also works more productively than its predecessor. Arithmetic and logical operations are performed much faster than multiplication and division.

Ref: https://bit.ly/3giyonA

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