Declaring and Initializing Arrays in Java || Lesson 52 || Java Programming || Learning Monkey ||
Declaring and Initializing Arrays in Java
In this class, We discuss Declaring and Initializing Arrays in Java.
The reader should have prior knowledge of the class and object. Click Here.
Array:
An array is a sequence of homogeneous elements.
The below diagram shows the array of six elements.
The diagram shows how elements are stored in Random access memory.
The array index starts from zero.
a[2] is the way to access elements in position two.
The below example shows the declaration of the array.
class test
{
public static void main()
{
int[] a;
a= new int[10];
a[0]=10;
a[1]=20;
System.out.println(a[0]);
}
}
int[] a; is used to declare an array variable.
We create an array object using a new keyword.
The above two declaration and object creation lines can be done in the same line.
class test
{
public static void main()
{
int[] a= new int[10];
a[0]=10;
a[1]=20;
System.out.println(a[0]);
}
}
array initialization done using the syntax int[] a = {1,2,5,10};
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