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JAVA
insert element into arraylist java
ArrayList<String> arrayList = new ArrayList<>();
// Adds element at the back of the list
arrayList.add("foo");
arrayList.add("bar");
// Result = ["foo", "bar"]
// Adds element at the specified index
arrayList.add(1, "baz");
// Result = ["foo", "baz", "bar"]
java arraylist add
//create ArrayList
ArrayList<String> arrayList = new ArrayList<String>();
//add item to ArrayList
arrayList.add("item");
//check if ArrayList contains item (returns boolean)
System.out.println(arrayList.contains("item"));
//remove item from ArrayList
arrayList.remove("item");
how to add to an arraylist java
import java.util.ArrayList;
public class Details {
public static void main(String[] args) {
//ArrayList<String> Declaration
ArrayList<String> al= new ArrayList<String>();
//add method for String ArrayList
al.add("Ram");
al.add("Shyam");
al.add("CPS");
al.add("John");
al.add("Steve");
System.out.println("Elements of ArrayList of String Type: "+al);
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
Java Add Elements to an ArrayList
import java.util.ArrayList;
class Main {
public static void main(String[] args){
// create ArrayList
ArrayList<String> languages = new ArrayList<>();
// add() method without the index parameter
languages.add("Java");
languages.add("C");
languages.add("Python");
System.out.println("ArrayList: " + languages);
}
}
Add an element to ArrayList using addall() method
import java.util.ArrayList;
import java.util.HashSet;
class Main {
public static void main(String[] args) {
// create a set
HashSet<String> vowels = new HashSet<>();
vowels.add("a");
vowels.add("e");
vowels.add("i");
vowels.add("o");
vowels.add("u");
// create an arraylist
ArrayList<String> alphabets = new ArrayList<>();
// add all elements of set to arraylist
alphabets.addAll(vowels);
System.out.println("ArrayList: " + alphabets);
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add value to arraylist
List<String> list = List.of("first", "second", "third");
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
Add items to ArrayList Using add() function
import java.util.ArrayList;
class Main {
public static void main(String[] args){
// create ArrayList
ArrayList<String> Websites = new ArrayList<>();
// add() method without the index parameter
Websites.add("Softhunt.net");
Websites.add("Pythonprogramming.com");
Websites.add("Tutorial.io");
System.out.println("ArrayList: " + Websites);
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add elements to arraylist of arraylist in java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
add element to arraylist of arraylist java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
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