How to initialize string array?

Following are different ways to initialize string array.

Approach 1: Using literal notation

String[] str1 = { "Hello", "How", "Are", "You" };

Approach 2: By defining the array and initialize elements using index notation.

String[] str2 = new String[4];

str2[0] = "Hello";

str2[1] = "How";

str2[2] = "Are";

str2[3] = "You";

Approach 3: Using literal notation

String[] str3 = new String[] { "Hello", "How", "Are", "You" };

Approach 4: Using Stream.of method

String[] str4 = Stream.of("Hello", "How", "Are", "You").toArray(String[]::new);

Approach 5: Using streams.

String[] str5 = Arrays.asList("Hello", "How", "Are", "You").stream().toArray(String[]::new);

Find the below working application.

App.java

package com.sample.app;

import java.util.Arrays;
import java.util.stream.Stream;

public class App {

 private static void printArray(String[] arr) {

  for (String str : arr) {
   System.out.print(str + " ");
  }
  System.out.println();
 }

 public static void main(String args[]) {
  String[] str1 = { "Hello", "How", "Are", "You" };

  String[] str2 = new String[4];
  str2[0] = "Hello";
  str2[1] = "How";
  str2[2] = "Are";
  str2[3] = "You";

  String[] str3 = new String[] { "Hello", "How", "Are", "You" };

  String[] str4 = Stream.of("Hello", "How", "Are", "You").toArray(String[]::new);

  String[] str5 = Arrays.asList("Hello", "How", "Are", "You").stream().toArray(String[]::new);

  printArray(str1);
  printArray(str2);
  printArray(str3);
  printArray(str4);
  printArray(str5);
 }

}

Output

Hello How Are You

Hello How Are You

Hello How Are You

Hello How Are You

Hello How Are You

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