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why we use Map<String, Object> whats is its significant with examples

Cloudy Cobra answered on June 19, 2023 Popularity 1/10 Helpfulness 1/10

answer why we use Map<String, Object> whats is its significant with examples

why we use Map<String, Object> whats is its significant with examples

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import java.util.HashMap;
import java.util.Map;

public class MapExample {
    public static void main(String[] args) {
        Map<String, Object> student = new HashMap<>();

        student.put("name", "John Doe");
        student.put("age", 20);
        student.put("grade", "A");
        student.put("isEnrolled", true);

        System.out.println("Student Details:");
        System.out.println("Name: " + student.get("name"));
        System.out.println("Age: " + student.get("age"));
        System.out.println("Grade: " + student.get("grade"));
        System.out.println("Enrolled: " + student.get("isEnrolled"));

        // Updating a value
        student.put("age", 21);

        // Removing a key-value pair
        student.remove("grade");

        // Checking if a key exists
        if (student.containsKey("isEnrolled")) {
            System.out.println("The student is enrolled.");
        }

        // Iterating over the map
        for (Map.Entry<String, Object> entry : student.entrySet()) {
            String key = entry.getKey();
            Object value = entry.getValue();
            System.out.println(key + ": " + value);
        }
    }
}

Popularity 1/10 Helpfulness 1/10 Language typescript

Source: chat.openai.com

Tags: typescript

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Contributed on Jun 19 2023

Cloudy Cobra

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