In this tutorial, we will see “How to convert an Array to an ArrayList in Java 8?” array to arraylist java 8
Convert an Array to ArrayList in Java 8 with example...!!! Click To Tweet
Table of Contents
- Example 1. Convert Primitive Int Array to ArrayList – Method – 1
- Example 2. Convert Primitive Int Array to ArrayList – Method – 2
- Example 3. Convert Integer Array to ArrayList
- stream to array java
- Example 4. Convert String Array to ArrayList – Method – 1
- stream to array java
- Example 5. Convert String Array to ArrayList – Method – 2
- stream to array java
Example 1. Convert Primitive Int Array to ArrayList – Method – 1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | /** * Convert Primitive Int Array to ArrayList - Method - 1 * @author Deepak Verma */ import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; public class Convert_Primitive_Int_Array_to_ArrayList_using_Java8_Method_1 { public static void main(String[] args) { int intArray[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; List<Integer> listOfIntegers = Arrays.stream(intArray).boxed().collect(Collectors.toList()); System.out.println("List: " + listOfIntegers); } } |
Output:
1 | List: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] |
Example 2. Convert Primitive Int Array to ArrayList – Method – 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | /** * Convert Primitive Int Array to ArrayList - Method - 2 * @author Deepak Verma */ import java.util.List; import java.util.stream.Collectors; import java.util.stream.IntStream; public class Convert_Primitive_Int_Array_to_ArrayList_using_Java8_Method_2 { public static void main(String[] args) { int intArray[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; List<Integer> listOfIntegers = IntStream.of(intArray).boxed().collect(Collectors.toList()); System.out.println("List: " + listOfIntegers); } } |
Output:
1 | List: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] |
Example 3. Convert Integer Array to ArrayList
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | /** * Convert Integer Array to ArrayList * @author Deepak Verma */ import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; public class Convert_Integer_Array_to_ArrayList_using_Java8 { public static void main(String[] args) { Integer integerArray[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; List<Integer> listOfIntegers = Arrays.stream(integerArray).collect(Collectors.toList()); System.out.println("List: " + listOfIntegers); } } |
Output:
1 | List: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] |
stream to array java
Example 4. Convert String Array to ArrayList – Method – 1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | /** * Convert String Array to ArrayList - Method - 1 * @author Deepak Verma */ import java.util.List; import java.util.stream.Collectors; import java.util.stream.Stream; public class Convert_String_Array_to_ArrayList_using_Java8_Method_1 { public static void main(String[] args) { String stringArray[] = {"Tom", "Bill", "Alex", "Henry", "Adam"}; List<String> listOfStrings = Stream.of(stringArray).collect(Collectors.toList()); System.out.println("List: "+listOfStrings); } } |
Output:
1 | List: [Tom, Bill, Alex, Henry, Adam] |
stream to array java
array to arraylist java 8 array to arraylist java 8 array to arraylist java 8 array to arraylist java 8
Example 5. Convert String Array to ArrayList – Method – 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | /** * Convert String Array to ArrayList - Method - 2 * @author Deepak Verma */ import java.util.ArrayList; import java.util.stream.Collectors; import java.util.stream.Stream; public class Convert_String_Array_to_ArrayList_using_Java8_Method_2 { public static void main(String[] args) { String stringArray[] = {"Tom", "Bill", "Alex", "Henry", "Adam"}; ArrayList<String> listOfStrings = Stream.of(stringArray).collect(Collectors.toCollection(ArrayList::new)); System.out.println("List: "+listOfStrings); } } |
Output:
1 | List: [Tom, Bill, Alex, Henry, Adam] |
stream to array java
array to arraylist java 8
Convert an Array to ArrayList in Java 8 with example...!!! Click To Tweet
Do you like this Post? – then check my other helpful posts:
- Convert a Stream to a List in Java 8
- Stream maptoint in Java 8 with examples
- Double the numbers of specified ArrayList using Streams
- Double the even / odd numbers of a specified ArrayList using Streams
- How to check if Number is Prime or not using Streams
- Retrieve Even/Odd Numbers within the Range using Java 8 Streams
- How to add/sum up the ArrayList integers using Java8 Streams
- Generate Prime Numbers in Java 8 using Streams
- Comparator example – Collections sort with/without Lambda in Java 8
- How to pass function as a parameter in a method in Java 8?
- Remove duplicates from ArrayList in Java 8
- ForEach examples for Map/List in Java 8
Other Useful References:
