list java add code example

Example 1: java add a list to a list

List mylist.addAll(secondList);

Example 2: java array add element

// A better solution would be to use an ArrayList which can grow as you need it. 
// The method ArrayList.toArray( T[] a ) 
// gives you back your array if you need it in this form.

List<String> where = new ArrayList<String>();
where.add(element);
where.add(element);

// If you need to convert it to a simple array...

String[] simpleArray = new String[ where.size() ];
where.toArray( simpleArray );

Example 3: how to add a list in a list java

List<SomePojo> list = new ArrayList<SomePojo>();

List<SomePojo> anotherList = new ArrayList<SomePojo>();
anotherList.add(list);

Example 4: 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");