Arrays in Java (Part 3)

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Arrays in Java: (Part 3)

One Dimensional Array (Accepting array and printing programs):

• Example: (Print static array (int) in Java)

  	// Print a Static array in Java
  	import java.util.Scanner;
  	class test {
  	public static void main(String ar[]) {
  	int a[]={10,13,15,16,18}; // declare and initialize
  	// length -> counts the number of values stored in array a
  	for(int i=0 ; i<a.length ; i++)
  	{
  	System.out.println(i + " "+ a[i]);
  	}
  	}
  	}
  	/* OUTPUT
  	0 10
  	1 13
  	2 15
  	3 16
  	4 18 */

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• Example: (Print Dynamic array (int) in Java)

  	// Print a Dynamic array in Java
  	import java.util.Scanner;
  	class test {
  	public static void main(String ar[])
  	{
  	Scanner scan = new Scanner(System.in);
  	//take array size input from user
  	System.out.println("Enter size of array:");
  	int size = scan.nextInt();
  	//take elements input from user
  	int array[] = new int[size];
  	for(int i=0 ; i<array.length ; i++) // can also use size instead of length
  	{
  	System.out.println("Enter "+i+" element:"); // informing user to print which element
  	array[i] = scan.nextInt(); //user enters element which is stored in array, at location i
  	}
  	// same loop to print the elements
  	for(int i=0 ; i<array.length ; i++) // can also use size instead of length
  	{
  	System.out.println(i+" "+array[i]);
  	}
  	}
  	}

  view raw pattern.java hosted with ❤ by GitHub
• Example: (Print static array (String) in Java)

  	// Print a static (String) array in Java
  	import java.util.Scanner;
  	class test
  	{
  	public static void main(String ar[])
  	{
  	String array[] = {"Hello","to","the","World","Of","Java"};// declare and initialize
  	// length -> counts the number of values stored in array a
  	for(int i=0 ; i<array.length ; i++)
  	{
  	System.out.println(i + " "+ array[i]);
  	}
  	}
  	}
  	/* OUTPUT
  	0 Hello
  	1 to
  	2 the
  	3 World
  	4 Of
  	5 Java
  	*/

  view raw pattern.java hosted with ❤ by GitHub
• Example: (Print dynamic array (String) in Java)

  	// Print a Dynamic array in Java
  	import java.util.Scanner;
  	class test
  	{
  	public static void main(String ar[])
  	{
  	Scanner scan = new Scanner(System.in);
  	//take array size input from user
  	System.out.println("Enter size of array:");
  	int size = scan.nextInt();
  	scan.nextLine(); // clear the buffer after integer input.
  	//take elements input from user
  	String array[] = new String[size];
  	for(int i=0 ; i<array.length ; i++) // can also use size instead of length
  	{
  	System.out.println("Enter "+i+" element:"); // informing user to print which element
  	array[i] = scan.nextLine(); //user enters sentences which are stored in array, at location i
  	}
  	// same loop to print the elements
  	for(int i=0 ; i<array.length ; i++) // can also use size instead of length
  	{
  	System.out.println(i+" "+array[i]);
  	}
  	}
  	}
  	/* OUTPUT
  	Enter size of array:
  	3
  	Enter 0 element:
  	this is first
  	Enter 1 element:
  	this is second
  	Enter 2 element:
  	this is third
  	0 this is first
  	1 this is second
  	2 this is third
  	*/

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