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inserting a mapping in the map interface java

Fierce Flatworm answered on September 12, 2022 Popularity 3/10 Helpfulness 1/10

answer inserting a mapping in the map interface java

related inserting a mapping in the map interface java

inserting a mapping in the map interface java

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// Java program to demonstrate
// the working of Map interface
  
import java.util.*;
class GFG {
    public static void main(String args[])
    {
  
        // Initialization of a Map
        // using Generics
        Map<Integer, String> hm1
            = new HashMap<Integer, String>();
  
        // Inserting the Elements
        hm1.put(new Integer(1), "Geeks");
        hm1.put(new Integer(2), "Geeks");
        hm1.put(new Integer(3), "Geeks");
  
        System.out.println("Initial Map " + hm1);
  
        hm1.put(new Integer(2), "For");
  
        System.out.println("Updated Map " + hm1);
    }
}

Popularity 3/10 Helpfulness 1/10 Language java

Source: www.geeksforgeeks.org

Tags: interface java map mapping

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Contributed on Sep 12 2022

Fierce Flatworm

0 Answers Avg Quality 2/10

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inserting a mapping in the map interface java

Comment

// Java Program to Illustrate the LinkedHashmap Class
  
// Importing required classes
import java.util.*;
  
// Main class
public class GFG {
  
    // Main driver method
    public static void main(String[] args)
    {
  
        // Creating an empty LinkedHashMap
        Map<String, Integer> map = new LinkedHashMap<>();
  
        // Inserting pair entries in above Map
        // using put() method
        map.put("vishal", 10);
        map.put("sachin", 30);
        map.put("vaibhav", 20);
  
        // Iterating over Map
        for (Map.Entry<String, Integer> e : map.entrySet())
  
            // Printing key-value pairs
            System.out.println(e.getKey() + " "
                               + e.getValue());
    }
}

Popularity 3/10 Helpfulness 2/10 Language java

Source: www.geeksforgeeks.org

Tags: java map interface mapping

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Contributed on Sep 12 2022

Fierce Flatworm

0 Answers Avg Quality 2/10

inserting a mapping in the map interface java

Comment

// Java Program to Demonstrate
// Working of Map interface
  
// Importing required classes
import java.util.*;
  
// Main class
class GFG {
  
    // Main driver method
    public static void main(String args[])
    {
        // Creating an empty HashMap
        Map<String, Integer> hm
            = new HashMap<String, Integer>();
  
        // Inserting pairs in above Map
        // using put() method
        hm.put("a", new Integer(100));
        hm.put("b", new Integer(200));
        hm.put("c", new Integer(300));
        hm.put("d", new Integer(400));
  
        // Traversing through Map using for-each loop
        for (Map.Entry<String, Integer> me :
             hm.entrySet()) {
  
            // Printing keys
            System.out.print(me.getKey() + ":");
            System.out.println(me.getValue());
        }
    }
}

Popularity 3/10 Helpfulness 1/10 Language java

Source: www.geeksforgeeks.org

Tags: map interface mapping java

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Contributed on Sep 12 2022

Fierce Flatworm

0 Answers Avg Quality 2/10

inserting a mapping in the map interface java

Comment

// Java Program to illustrate the Hashmap Class
  
// Importing required classes
import java.util.*;
  
// Main class
public class GFG {
  
    // Main driver method
    public static void main(String[] args)
    {
  
        // Creating an empty HashMap
        Map<String, Integer> map = new HashMap<>();
  
        // Inserting entries in the Map
        // using put() method
        map.put("vishal", 10);
        map.put("sachin", 30);
        map.put("vaibhav", 20);
  
        // Iterating over Map
        for (Map.Entry<String, Integer> e : map.entrySet())
  
            // Printing key-value pairs
            System.out.println(e.getKey() + " "
                               + e.getValue());
    }
}

Popularity 3/10 Helpfulness 1/10 Language java

Source: www.geeksforgeeks.org

Tags: java mapping interface map

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Contributed on Sep 12 2022

Fierce Flatworm

0 Answers Avg Quality 2/10

inserting a mapping in the map interface java

Comment

// Java Program to Illustrate TreeMap Class
  
// Importing required classes
import java.util.*;
  
// Main class
public class GFG {
  
    // Main driver method
    public static void main(String[] args)
    {
  
        // Creating an empty TreeMap
        Map<String, Integer> map = new TreeMap<>();
  
        // Inserting custom elements in the Map
        // using put() method
        map.put("vishal", 10);
        map.put("sachin", 30);
        map.put("vaibhav", 20);
  
        // Iterating over Map using for each loop
        for (Map.Entry<String, Integer> e : map.entrySet())
  
            // Printing key-value pairs
            System.out.println(e.getKey() + " "
                               + e.getValue());
    }
}

Popularity 3/10 Helpfulness 1/10 Language java

Source: www.geeksforgeeks.org

Tags: interface mapping java map

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Contributed on Sep 12 2022

Fierce Flatworm

0 Answers Avg Quality 2/10

inserting a mapping in the map interface java

Comment

// Java program to demonstrate
// the working of Map interface
  
import java.util.*;
class GFG {
  
    public static void main(String args[])
    {
  
        // Initialization of a Map
        // using Generics
        Map<Integer, String> hm1
            = new HashMap<Integer, String>();
  
        // Inserting the Elements
        hm1.put(new Integer(1), "Geeks");
        hm1.put(new Integer(2), "For");
        hm1.put(new Integer(3), "Geeks");
        hm1.put(new Integer(4), "For");
  
        // Initial Map
        System.out.println(hm1);
  
        hm1.remove(new Integer(4));
  
        // Final Map
        System.out.println(hm1);
    }
}

Popularity 3/10 Helpfulness 1/10 Language java

Source: www.geeksforgeeks.org

Tags: interface mapping map java

Link to this answer
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Contributed on Sep 12 2022

Fierce Flatworm

0 Answers Avg Quality 2/10

inserting a mapping in the map interface java

Comment

// Java program to demonstrate
// the working of Map interface
  
import java.util.*;
class GFG {
    public static void main(String args[])
    {
  
        // Initialization of a Map
        // using Generics
        Map<Integer, String> hm1
            = new HashMap<Integer, String>();
  
        // Inserting the Elements
        hm1.put(new Integer(1), "Geeks");
        hm1.put(new Integer(2), "For");
        hm1.put(new Integer(3), "Geeks");
  
        for (Map.Entry mapElement : hm1.entrySet()) {
            int key
                = (int)mapElement.getKey();
  
            // Finding the value
            String value
                = (String)mapElement.getValue();
  
            System.out.println(key + " : "
                               + value);
        }
    }
}

Popularity 3/10 Helpfulness 1/10 Language java

Source: www.geeksforgeeks.org

Tags: interface map mapping java

Link to this answer
Share Copy Link

Contributed on Sep 12 2022

Fierce Flatworm

0 Answers Avg Quality 2/10

inserting a mapping in the map interface java

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