How do I print an array in Java 8?

Java – How to print an Array

1. Arrays.toString. This is the simplest way to print an Array – Arrays.toString (since JDK 1.5) PrintArray.java.
2. JDK 8 Stream. In JDK 8, we can convert it to Stream and print it.
3. Json Anything. This is my favor method, use Jackson2 library to print anything in a JSON formatted string.

Can you print an array in Java?

We cannot print array elements directly in Java, you need to use Arrays. toString() or Arrays. deepToString() to print array elements. Use toString() method if you want to print a one-dimensional array and use deepToString() method if you want to print a two-dimensional or 3-dimensional array etc.

How do I print a list in Java 8?

Print List in Java Using forEach() The last way to print a list in Java is to use the forEach() method introduced in Java 8. Every ArrayList has a forEach() method that processes every individual item from the List . We will use it to print out every item.

How do I print a string array?

Example of asList() method

1. import java.util.Arrays;
2. public class PrintArrayExample5.
3. {
4. public static void main(String [] args)
5. {
6. //declaration and initialization of two dimensional array.
7. String[] stringArray={“Hello”,”Java”,”Programmers”};
8. System.out.println(Arrays.asList(stringArray));

How do I print an entire array?

In order to print an integer array, all you need to do is call Arrays. toString(int array) method and pass your integer array to it. This method will take care of the printing content of your integer array, as shown below. If you directly pass int array to System.

How do I print the index of an array?

You can access an array element using an expression which contains the name of the array followed by the index of the required element in square brackets. To print it simply pass this method to the println() method.

What is array toString Java?

toString(int[]) method returns a string representation of the contents of the specified int array. The string representation consists of a list of the array’s elements, enclosed in square brackets (“[]”). Adjacent elements are separated by the characters “, ” (a comma followed by a space).

What is the output of Java 8 code?

JAVA 8 is a major feature release of JAVA programming language development. Its initial version was released on 18 March 2014. With the Java 8 release, Java provided supports for functional programming, new JavaScript engine, new APIs for date time manipulation, new streaming API, etc.

How do you print an array in a for loop?

Print Array Elements using While Loop

1. Start.
2. Take array in nums.
3. Initialize an variable for index and initialize it to zero.
4. Check if index is less than length of the array nums. If the condition is false, go to step 7.
5. Access the element nums[index] and print it.
6. Increment index. Go to step 4.
7. Stop.

What is the index of an array?

Definition: The location of an item in an array. Aggregate child (… is a part of or used in me.) 1-based indexing, 0-based indexing. Note: In most programming languages, the first array index is 0 or 1, and indexes continue through the natural numbers.

How do I print the first element of an array?

Alternativly, you can also use the reset() function to get the first element. The reset() function set the internal pointer of an array to its first element and returns the value of the first array element, or FALSE if the array is empty.