Creating a 2d arraylist in java

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());
}

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>>();

Similar codes

1 vote181 views2 answers
Java importing
Java
0 vote179 views1 answer
Difido
Java
2 votes156 views2 answers
Java swing alert window
Java
0 vote182 views1 answer
Regex validation for special characters in java
Java
0 vote171 views1 answer
Java script find screen size of device
Java
0 vote188 views1 answer
Required a bean of type 'org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder' that could not be found.
Java
0 vote166 views4 answers
Trier un tableau de string java
Java
0 vote161 views1 answer
Can abstract method be protected, default, private
Java
0 vote175 views1 answer
FranchiseRulesTemp
Java
1 vote215 views2 answers
Remove new line in string of java
Java