How to Print an Array in Java

Java array is an object which contains elements of a similar data type. Additionally, The elements of an array are stored in a contiguous memory location.

It is a data structure where we store similar elements. We can store only a fixed set of elements in a Java array.

Array in Java is index-based.

The first element of the array is stored at the 0th index

The 2nd element is stored on 1st index and so on.

			
					class testArr {
  public static void main(String args[]) {
    int abc[] = new int[5]; //declaration and instantiation  
    abc[0] = 10; //initialization  
    abc[1] = 20;
    abc[2] = 30;
    abc[3] = 40;
    abc[4] = 50;
    //traversing array  
    for (int i = 0; i < abc.length; i++) //length is the property of array  
      System.out.println(abc[i]);
  }
}

Java Print Array

Output

Java Program to illustrate the use of declaration, instantiation and initialization of Java array in a single line

			
					  class testArr2 {
    public static void main(String args[]) {
      int abc2[] = { 11,22,33,44,55 }; //declaration, instantiation and initialization
      //printing array  
      for (int i = 0; i < abc2.length; i++) //length is the property of array  
        System.out.println(abc2[i]);
    }
  }

Output

For Each Loop in Java

We can also print the Java array using for-each loop.
The Java for-each loop prints the array elements one by one.
It holds an array element in a variable, then executes the body of the loop.

			
					class testArr3 {
  public static void main(String args[]) {
    int arr[] = { 11,22,33,44,55 };
    //printing array using for-each loop
    for (int i: arr)
      System.out.println(i);
  }
}

Output

Multidimensional Array in Java

In such case, data is stored in row and column based index (also known as matrix form).

			
					    class testArr {
      public static void main(String args[]) {
        //declaring and initializing 2D array  
        int arr[][]={{1,2,3},{4,5,6},{7,8,9}}; 
        //printing 2D array  
        for (int i = 0; i < 3; i++) {
          for (int j = 0; j < 3; j++) {
            System.out.print(arr[i][j] + " ");
          }
          System.out.println();
        }
      }
    }

Output

It makes the code optimized, we can retrieve or sort the data efficiently.
We can get any data located at an index position.

How to Print an Array in Java ?

How to Print an Array in Java

Java Print Array

For Each Loop in Java

Multidimensional Array in Java