java 8 group a collections by 2 property

Java

Map<String, Map<BlogPostType, List>> map = posts.stream()
  .collect(groupingBy(BlogPost::getAuthor, groupingBy(BlogPost::getType)));

Source

Also in Java:

Title
java string to double
Category
Java
Title
java valeur absolue
Category
Java
Title
how to add multiple filter condition in Java stream filter chain
Category
Java
Title
foreach not applicable to type - binary tree sort
Category
Java
Title
sqrt in java
Category
Java
Title
java add a list to a list
Category
Java
Title
stack overflow recyclerview
Category
Java
Title
reading string after double in java
Category
Java
Title
Java.awt graphics tutorial
Category
Java
Title
pascal's triangle java 2d array
Category
Java
Title
processing sound android
Category
Java
Title
print hello world in java
Category
Java
Title
android get distance between two locations kotlin
Category
Java
Title
generate objects with for loop java
Category
Java
Title
how timer class and display to jtextfield w3schools in java
Category
Java
Title
org.springframework.orm.jpa.EntityManagerHolder cannot be cast to org.springframework.orm.hibernate5.SessionHolder
Category
Java
Title
java random number in range
Category
Java
Title
java method
Category
Java
Title
java letter alphabet index
Category
Java
Title
java random integer
Category
Java
Title
convert hashset to int array java
Category
Java
Title
java new string array
Category
Java
Title
java array copy
Category
Java
Title
java hashmap size
Category
Java
Title
byte java
Category
Java
Title
get sha key android
Category
Java
Title
int to binary string java
Category
Java
Title
how to compare current date and time with another date and time in android
Category
Java
Title
spring code in java
Category
Java
Title
get host from request object java
Category
Java
Title
decomposer chaine de caractère java
Category
Java
Title
how to take binary input in java
Category
Java
Title
for loop in java stack overflow
Category
Java
Title
java array declaration
Category
Java
Title
java calculator code
Category
Java
Title
getindexrequest elasticsearch
Category
Java
Title
how to separate no and text in java
Category
Java
Title
eliminar fila jtable java
Category
Java
Title
java processbuilder example
Category
Java
Title
java replace all html tags
Category
Java
Title
java "->"
Category
Java
Title
java round double to 2 decimal places
Category
Java
Title
java map declaration
Category
Java
Title
how to pass parameters to xsl file
Category
Java
Title
how to find length of array in java
Category
Java
Title
android bottom navigation hiding views
Category
Java
Title
import java.util.hashset
Category
Java
Title
how to substring in java
Category
Java
Title
how to get all the names of the files in a folder in java?
Category
Java
Title
can we overload a static method in java
Category
Java
Title
link to method javadoc
Category
Java
Title
keep jframe on top
Category
Java
Title
do statement java
Category
Java
Title
java loop through array
Category
Java
Title
remove action bar android studio
Category
Java
Title
java queue
Category
Java
Title
how to implement a interface in java
Category
Java
Title
java math.random
Category
Java
Title
java pass arraylist by value
Category
Java
Title
how to ask user for his location in android
Category
Java
Title
@fortawesome/free-solid-svg-icons
Category
Java
Title
http client java
Category
Java
Title
shorthand if java without else
Category
Java
Title
resurce leak java
Category
Java
Title
reverse linked list in java to get both head and tail
Category
Java
Title
string remove last character
Category
Java
Title
java constructor genertic
Category
Java
Title
android clear specific sharedpreference value
Category
Java
Title
array methods in java
Category
Java
Title
change brightness of image in java
Category
Java
Title
java previous permutation
Category
Java
Title
arraylist with values java
Category
Java
Title
connect 2 package in android
Category
Java
Title
tolowercase java
Category
Java
Title
blurview android github
Category
Java
Title
find frequency of each word in a string in java
Category
Java
Title
get file path java
Category
Java
Title
how add strings together
Category
Java
Title
java save string in text file
Category
Java
Title
java insert array
Category
Java
Title
spigot deal damage
Category
Java
Title
java read integer from text file into array scanner
Category
Java
Title
java remove first character from string
Category
Java
Title
how to add java_home in mac
Category
Java
Title
java array swap
Category
Java
Title
java stack
Category
Java
Title
fibonacci sequence java
Category
Java
Title
Primitive Type vs. Reference Type
Category
Java
Title
how to import an arraylist in java
Category
Java
Title
calculating the percentile in java
Category
Java
Title
Jlabel icon
Category
Java
Title
lopp array java
Category
Java
Title
how to make a copy of an array java
Category
Java
Title
how to get binary value in java
Category
Java
Title
html redirect
Category
Java
Title
2d arrays | java
Category
Java
Title
how to take space separated input in java
Category
Java
Title
in dom parser how to find processing instruction in java
Category
Java
Title
how to convert a jsonobject to a dbobject
Category
Java
Title
Java create array of array
Category
Java