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MapExample.java
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MapExample.java
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package divider;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.TreeMap;
public class MapExample {
public static void main(String[] args) {
HashMap<String,Integer> maps = new HashMap<>();
maps.put("Chathu", 100);
maps.put("Amanda", 120);
maps.put("Baghya", 70);
Map<String,Integer> maps2 = new LinkedHashMap<>();
maps2.put("Chathu", 100);
maps2.put("Amanda", 120);
maps2.put("Baghya", 70);
Map<String,Integer> maps3 = new TreeMap<>();
maps3.put("Chathu", 100);
maps3.put("Amanda", 80);
maps3.put("Baghya", 70);
System.out.println("....................................");
for(Map.Entry<String, Integer> entry : maps2.entrySet()) {
System.out.println("Key is " +entry.getKey() + " Value is " + entry.getValue());
}
System.out.println("....................................");
for(Map.Entry<String, Integer> entry : maps.entrySet()) {
System.out.println("Key is " +entry.getKey() + " Value is " + entry.getValue());
}
System.out.println("....................................");
for(Map.Entry<String,Integer> entry: maps3.entrySet()) {
System.out.println("Key is " +entry.getKey() + " Value is " + entry.getValue());
}
System.out.println(maps.containsKey("Chathu"));
}
}