how to iterate hashmap in java
Java
for (Map.Entry<String, String> entry : yourHashMap.entrySet()) {
System.out.println(entry.getKey() + " = " + entry.getValue());
}for (Map.Entry<String, String> entry : yourHashMap.entrySet()) {
System.out.println(entry.getKey() + " = " + entry.getValue());
}
map.forEach((k, v) -> {
System.out.format("key: %s, value: %d%n", k, v);
});map.forEach((k, v) -> {
System.out.format("key: %s, value: %d%n", k, v);
});public static void printMap(Map mp) {
Iterator it = mp.entrySet().iterator();
while (it.hasNext()) {
Map.Entry pair = (Map.Entry)it.next();
System.out.println(pair.getKey() + " = " + pair.getValue());
it.remove(); // avoids a ConcurrentModificationException
}
}// Java program to demonstrate iteration over
// Map.entrySet() entries using for-each loop
import java.util.Map;
import java.util.HashMap;
class IterationDemo
{
public static void main(String[] arg)
{
Map<String,String> gfg = new HashMap<String,String>();
// enter name/url pair
gfg.put("GFG", "geeksforgeeks.org");
gfg.put("Practice", "practice.geeksforgeeks.org");
gfg.put("Code", "code.geeksforgeeks.org");
gfg.put("Quiz", "quiz.geeksforgeeks.org");
// using for-each loop for iteration over Map.entrySet()
for (Map.Entry<String,String> entry : gfg.entrySet())
System.out.println("Key = " + entry.getKey() +
", Value = " + entry.getValue());
}
}
// Java program for traversing
// through a hashmap using for-each loop
import java.util.*;
class GfG {
public static void main(String[] args)
{
// Consider the hashmap containing
// student name and their marks
HashMap<String, Integer> hm =
new HashMap<String, Integer>();
// Adding mappings to HashMap
hm.put("GeeksforGeeks", 54);
hm.put("A computer portal", 80);
hm.put("For geeks", 82);
// Printing the HashMap
System.out.println("Created hashmap is" + hm);
// Loop through the hashmap
System.out.println("HashMap after adding bonus marks:");
// Using for-each loop
for (Map.Entry mapElement : hm.entrySet()) {
String key = (String)mapElement.getKey();
// Add some bonus marks
// to all the students and print it
int value = ((int)mapElement.getValue() + 10);
System.out.println(key + " : " + value);
}
}
}
Also in Java:
- Title
- print arraylist java
- Category
- Java
- Title
- java singleton implementation
- Category
- Java
- Title
- run java classpath command line
- Category
- Java
- Title
- java hashmap size
- Category
- Java
- Title
- how to create a Rectangle in java
- Category
- Java
- Title
- java not instanceof
- Category
- Java
- Title
- java manacher's algorithm
- Category
- Java
- Title
- exponents java
- Category
- Java
- Title
- déclarer un tableau en java
- Category
- Java
- Title
- palindrome function java
- Category
- Java
- Title
- java convert char to int
- Category
- Java
- Title
- serialversionuid java
- Category
- Java
- Title
- print a string java
- Category
- Java
- Title
- check if a char is a space java
- Category
- Java
- Title
- logging in java
- Category
- Java
- Title
- java get last char of string
- Category
- Java
- Title
- how to import a scanner in java
- Category
- Java
- Title
- height constraint layout guideline
- Category
- Java
- Title
- how to find length of array in java
- Category
- Java
- Title
- iterate through an arraylist java
- Category
- Java
- Title
- java lambda list of objects cast
- Category
- Java
- Title
- java 8 retrieve all list from object into single list and ignore duplicates
- Category
- Java
- Title
- java lerp
- Category
- Java
- Title
- programmation android avoir acces à la liste des intents de partage
- Category
- Java
- Title
- install java debian 8
- Category
- Java
- Title
- NumSelfDivisors java
- Category
- Java
- Title
- get sha key android
- Category
- Java
- Title
- run spring boot application command line
- Category
- Java
- Title
- how to format a double in java to 2 decimal places
- Category
- Java
- Title
- how to check if a string contains only alphabets and space in java
- Category
- Java
- Title
- int to string java
- Category
- Java
- Title
- bracket balancing program in java
- Category
- Java
- Title
- how to ask user for his location in android
- Category
- Java
- Title
- @fortawesome/free-solid-svg-icons
- Category
- Java
- Title
- how to loop trough an object java script
- Category
- Java
- Title
- how to get a user input in java
- Category
- Java
- Title
- how to change the icon of a jframe
- Category
- Java
- Title
- declare String in java
- Category
- Java
- Title
- java localdate subtract two dates
- Category
- Java
- Title
- java valeur absolue
- Category
- Java
- Title
- java random between two strings
- Category
- Java
- Title
- recursion in java
- Category
- Java
- Title
- java stack pop
- Category
- Java
- Title
- android studio centering textview in relativelayout
- Category
- Java
- Title
- official java website
- Category
- Java
- Title
- parseints(str) java
- Category
- Java
- Title
- check if optional is empty java
- Category
- Java
- Title
- convert char to string java
- Category
- Java
- Title
- java constructor genertic
- Category
- Java
- Title
- compare list from db and list from request
- Category
- Java
- Title
- java read file bufferedreader
- Category
- Java
- Title
- java obtain list string from list object
- Category
- Java
- Title
- most common element in list java
- Category
- Java
- Title
- java random number
- Category
- Java
- Title
- add video in bootstrap
- Category
- Java
- Title
- add element to stack java
- Category
- Java
- Title
- how to change the color of a menubar in java
- Category
- Java
- Title
- while loops java
- Category
- Java
- Title
- Java how to copy file
- Category
- Java
- Title
- java split string on two or more spaces except for words in quotes
- Category
- Java
- Title
- read csv java android
- Category
- Java
- Title
- java null pointer exception
- Category
- Java
- Title
- java 8 iterating and manipulating list
- Category
- Java
- Title
- java treemap
- Category
- Java
- Title
- arraylist set method
- Category
- Java
- Title
- how to initialize an array in java
- Category
- Java
- Title
- room insert and return id
- Category
- Java
- Title
- switch java 11
- Category
- Java
- Title
- big integer java
- Category
- Java
- Title
- parse string to int java
- Category
- Java
- Title
- java catch multiple exceptions
- Category
- Java
- Title
- string remove last character
- Category
- Java
- Title
- imagesbutton how to set background
- Category
- Java
- Title
- .length array java
- Category
- Java
- Title
- how to add a keylistener to a jframe
- Category
- Java
- Title
- equls en java
- Category
- Java
- Title
- java jpa criteriabuilder in xample
- Category
- Java
- Title
- android how to switch between activities
- Category
- Java
- Title
- java new string with values
- Category
- Java
- Title
- java create circle
- Category
- Java
- Title
- java create map
- Category
- Java
- Title
- remove duplicates from singly linked list
- Category
- Java
- Title
- displaying an arraylist in java
- Category
- Java
- Title
- how to iterate hashset in java 8
- Category
- Java
- Title
- android get distance between two locations kotlin
- Category
- Java
- Title
- write file from a specific location in java
- Category
- Java
- Title
- objectoutputstream exemple
- Category
- Java
- Title
- nullpointer extension
- Category
- Java
- Title
- socket programming in java
- Category
- Java
- Title
- java methods
- Category
- Java
- Title
- java how to iterate through a arraylist
- Category
- Java
- Title
- how to change maven java version in po,
- Category
- Java
- Title
- how to add an image to a gui in java windowbuilder
- Category
- Java
- Title
- multiple string java
- Category
- Java
- Title
- java singleton
- Category
- Java
- Title
- hide elements android
- Category
- Java
- Title
- hello world java
- Category
- Java
- Title
- what is graphics default color java
- Category
- Java
- Title
- json request body not getting parsed by spring boot controller
- Category
- Java
- Title
- declare hashmap java
- Category
- Java