Java Collection, ArrayList Exercises: Search an element in a array list

Java Collection, ArrayList Exercises: Exercise-7 with Solution

Write a Java program to search an element in a array list.

Pictorial Presentation:

Java Collection, ArrayList Exercises: Search an element in a list

Sample Solution:-

Java Code:

import java.util.*;
  public class Exercise7 {
  public static void main(String[] args) {
  // Creae a list and add some colors to the list
  List<String> list_Strings = new ArrayList<String>();
  // Search the value Red
    if (list_Strings.contains("Red")) {
    System.out.println("Found the element");
    } else {
    System.out.println("There is no such element");

Sample Output:

Found the element


Flowchart: Search an element in a list.

Java Code Editor:

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Java: Tips of the Day


Converts to enum to Map where key is the name and value is Enum itself.

public static <E extends Enum<E>> Map<String, E> getEnumMap(final Class<E> enumClass) {
    return Arrays.stream(enumClass.getEnumConstants())
            .collect(Collectors.toMap(Enum::name, Function.identity()));

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