2d arraylist in java

int vertexCount = 3;
ArrayList<ArrayList<Integer>> graph = new ArrayList<>(vertexCount);
//Next, we'll initialize each element of ArrayList with another ArrayList:

for(int i=0; i < vertexCount; i++) {
    graph.add(new ArrayList());
}

Source: grepper.com

Creating a 2d arraylist in java

List<List<String>> listOfLists = new ArrayList<List<String>>(size); 
for(int i=0; i<size; i++) {
	listOfLists.add(new ArrayList<String>());
}

Source: stackoverflow.com

How to create a 2d arraylist java

ArrayList<ArrayList<Object>> a = new ArrayList<ArrayList<Object>>();

-2

Source: grepper.com

Similar codes

0 vote281 views1 answer
Write a java program to merge three singly linked list elements
Java
0 vote323 views1 answer
Java android development find element by id
Java
0 vote280 views1 answer
Java string.format system.currenttimemillis
Java
3 votes276 views2 answers
What is void in java
Java
0 vote345 views1 answer
Neither bindingresult nor plain target object for bean name spring mvc
Java Spring
3 votes286 views1 answer
Declare array with values java
Java
0 vote340 views2 answers
Spring boot rest api
Java Spring
0 vote279 views1 answer
Autorest generate java client
Java
1 vote255 views1 answer
Java lowercase in a scanner
Java
0 vote254 views1 answer
Stringbuilder insert beginning
Java