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How To Declare String Array In Java Without Size

Last Updated : Jul 1, 2023

How To Declare String Array In Java Without Size

In this article we will show you the solution of how to declare string array in java without size, this is the case because every element is a String, and as you are aware, a String in Java is an object.

The String array supports all operations, including sorting, element addition, joining, splitting, and searching.

For storing a set number of Strings, use a Java String array.

After the String Array has been declared, it has to have some values added to it. If not, String components are allocated default values of null.

A String array can either have its initialization happen right after the declaration or right after it.

Now move to the concept of how to declare string array in java without size.

Step By Step Guide On How To Declare String Array In Java Without Size :-

An array of objects is essentially what a Java String array is. String arrays can be declared in two different ways: without a size and with a size.

String arrays can be initialised in one of two ways: before declaration, or by adding values later.

Using a string array, we may do a variety of operations, including iteration, sorting, and searching.

public class Main1
{
    public static void main(String[] args) {
        String[] minearray;
        String[] strArray = new String[5];
        System.out.println(minearray[0]);
        System.out.print(strArray[0] + " " +strArray[1]+ " " + strArray[2]+ " " +
        strArray[3]+ " " +strArray[4]);
    }
}
  1. Here, you can see a Java programme that displays the declaration of a string array both with and without a size.
  2. The public class is created on line one of the code. Being the starting point for running a Java application, the main method in Java is typically a first method you encounter while learning how to programme in Java.
  3. The main function is then launched by public static void main.
  4. On the command prompt, the method main accepts a string array. Public refers to accessibility from everywhere. Because the main method can only be called once and is fixed, static is primarily utilised for it.
  5. The string array is then declared without a size. A String Array is specified in the declaration just like a regular variable, but without a size. Be aware that you must initialise this array with new before using it.
  6. You'll see that we state the array's size after that. The new function declares and creates a String Array. Here, a five-element String array named "minearray" is declared.
  7. The array with the uninitialized variable is then printed. After that, we print the second array's elements.
  8. Due to the array's lack of initialization, all of the null values will be visible if you immediately print the array's items.

Conclusion :-

Thus, we have successfully mastered the Java idea of declaring string arrays without size.

Also, we discovered that the String array is capable of performing any function, including sorting, element adding, join, splitting, and searching.

Make use of the Java String array to store a predetermined number of Strings.

It is necessary to add certain values to the String Array after it has been declared. Otherwise, String component parameter of null are assigned.

The initialization of a String array may come either before or after the declaration.

I hope this article on how to declare string array in java without size helps you and the steps and method mentioned above are easy to follow and implement.