Show the output of the following code: public class Test { public static void main(String[] args) { Map map = new LinkedHashMap<>() ; map.put("123", "John Smith"); map.put ("111", "George Smith"); map.put("l123", "Steve Yao"); map.put("222", "Steve Yao"); System.out.println("(1) System.out.println("(2) } + map); + new TreeMap (map));

Show the output of the following code: public class Test { public static void main(String[] args) { Map map = new LinkedHashMap<>() ; map.put("123", "John Smith"); map.put ("111", "George Smith"); map.put("l123", "Steve Yao"); map.put("222", "Steve Yao"); System.out.println("(1) System.out.println("(2) } + map); + new TreeMap (map));

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Map

A map is defined as the name of a higher-order function in most of the programming languages that applies a given function to each element of a functor, such as a list, and returns a list of results in the same order. A map is also called the collection of values based on a key, i.e. a key and value pair. A map has its own set of keys. Duplicate keys are not permitted in the Map, although duplicate values are permitted. Because a Map cannot be navigated, it must be converted to a Set using the keySet() or entrySet() methods. For key-value association mapping, such as dictionaries, maps are ideal.

Question

4. Show the output of the following code:
public class Test {
public static void main(String[] args) {
Map<String, String> map = new LinkedHashMap<>();
map.put("123", "John Smith");
map.put ("111", "George Smith");
map.put("123", "Steve Yao");
map.put("222", "Steve Yao");
System.out:println("(1)
System.out.println(" (2)
}
uutr
wtni
" + map);
+ new TreeMap (map)) ;
}

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