Various ways to Iterate Java Map Entries

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package main.java.lessons;

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

public class IterateMapEntries {

    public static void main(String... args) {
        Map<String, String> map = new HashMap();
        map.put("California", "Sacramento");
        map.put("Texas", "Austin");
        map.put("Florida", "Tallahassee");
        map.put("Georgia", "Atlanta");

        /** 1. Iterating Map using an Iterator. **/
        Iterator iterator = map.entrySet().iterator();
        while (iterator.hasNext()) {
            Map.Entry<String, String> entry = (Map.Entry) iterator.next();
            System.out.println(String.format("Key:%s Value:%s", entry.getKey(), entry.getValue()));
        }
    }
}

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package main.java.lessons;

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

public class IterateMapEntries {

    public static void main(String... args) {
        Map<String, String> map = new HashMap();
        map.put("California", "Sacramento");
        map.put("Texas", "Austin");
        map.put("Florida", "Tallahassee");
        map.put("Georgia", "Atlanta");

    /** Iterating Map using for each loop over Map entries. **/
        for (Map.Entry entry : map.entrySet()) {
            System.out.println(String.format("Key:%s Value:%s", entry.getKey(), entry.getValue()));
        }
    }
}

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package main.java.lessons;

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

public class IterateMapEntries {

    public static void main(String... args) {
        Map<String, String> map = new HashMap();
        map.put("California", "Sacramento");
        map.put("Texas", "Austin");
        map.put("Florida", "Tallahassee");
        map.put("Georgia", "Atlanta");

    /** Iterating Map using java 1.8 forEach & lambda constructs. **/
        map.forEach((k, v) -> {
            System.out.println(String.format("Key:%s Value:%s", k, v));
        });
    }
}