Arrays Introduction

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Create Arrays

The syntax to create an array Is:

dataType[] arrayName;

For example,

Int[] data;

Here, data is an array that can hold values of type int. The number of values that this array can hold is unknown at the moment.

To define the number of elements that an array can hold, we need to allocate memory for the array.

Example: Access Array Elements

● This program prints the index values


class Main { 

public static void main(String[] args) { 

// create an array 

int[] data = {12, 19, 2, 8, 3}; 

// access array elements

System.out.printin( "1st Element: " + data[0]); 
System.out.println( "2nd Element: " + data[1]); 
System.out.println( "5th Element: " + data[4]); 

} 
} 

/*Output 

1st Element: 12 
2nd Element: 19 
5th Element: 3 */

Quiz

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