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 vote322 views1 answer
Preset arraylist java
Java
0 vote280 views1 answer
Execution failed for task ':app:packageDebug'. > A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade > java.io.IOException: Failed to generate v1 signature
Java
4 votes272 views2 answers
Java create directory if not exists
Java
0 vote292 views1 answer
Configuration reader java
Java
0 vote283 views1 answer
Spring boot jackson infinite recursion
Java
5 votes317 views3 answers
Change default java version mac
Java
0 vote283 views2 answers
Android volley benefits
Java
1 vote276 views2 answers
Java pass method as parameter
Java
0 vote337 views1 answer
Spring security avec spring version 2.5.6
Java Spring
107 votes351 views6 answers
Switch statement java
Java