[Java] How to insert an element in the middle of the array?

There is no quick util to perform this operation, we need to loop through the original array and assign values to a new array based on the logic. If the index is the middle index then we need to assign the new element.

import java.util.Arrays;

public class JavaArrays {
	public static void main(String[] args) {
		String[] colors = { "blue", "red", "green", "yellow" };
		String newColor = "brown";

		int middleIndex = colors.length / 2;

		String[] newColors = new String[colors.length + 1];

		for (int i = 0; i < colors.length + 1; i++) {
			if (i < middleIndex) {
				newColors[i] = colors[i];

			} else if (i == middleIndex) {
				newColors[i] = newColor;
			} else {
				newColors[i] = colors[i - 1];
			}
		}

		System.out.println(Arrays.toString(newColors));
	}
}

Output:

[blue, red, brown, green, yellow]

Try this code online: https://onecompiler.com/java/3xmtdu9ym