public class StaticVariableExample 
{
	static int Instances;
	StaticVariableExample()
	{
		Instances++;
	}
	public static void main(String[] args)
	{
		StaticVariableExample sve1 = new StaticVariableExample();
		System.out.println("No. of instances for sve1 : " 
			+ sve1.Instances);
		System.out.println("");
		StaticVariableExample sve2 = new StaticVariableExample();
		System.out.println("No. of instances for sve1 : "  
			+ sve1.Instances);
		System.out.println("No. of instances for sve2 : "  
			+ sve2.Instances);
		System.out.println("");
		StaticVariableExample sve3 = new StaticVariableExample();
		System.out.println("No. of instances for sve1 : "  
			+ sve1.Instances);
		System.out.println("No. of instances for sve2 : "  
			+ sve2.Instances);
		System.out.println("No. of instances for sve3 : "  
			+ sve3.Instances);
		System.out.println("");
		StaticVariableExample sve4 = new StaticVariableExample();
		System.out.println("No. of instances for sve1 : "  
			+ sve1.Instances);
		System.out.println("No. of instances for sve2 : "  
			+ sve2.Instances);
		System.out.println("No. of instances for sve3 : "  
			+ sve3.Instances);
		System.out.println("No. of instances for sve4 : "  
			+ sve4.Instances);
		System.out.println("");
		StaticVariableExample sve5 = new StaticVariableExample();
		System.out.println("No. of instances for sve1 : "  
			+ sve1.Instances);
		System.out.println("No. of instances for sve2 : "  
			+ sve2.Instances);
		System.out.println("No. of instances for sve3 : "  
			+ sve3.Instances);
		System.out.println("No. of instances for sve4 : "  
			+ sve4.Instances);
		System.out.println("No. of instances for sve5 : "  
			+ sve5.Instances);
	}
}

No. of instances for sve1 : 1

No. of instances for sve1 : 2
No. of instances for sve2 : 2

No. of instances for sve1 : 3
No. of instances for sve2 : 3
No. of instances for sve3 : 3

No. of instances for sve1 : 4
No. of instances for sve2 : 4
No. of instances for sve3 : 4
No. of instances for sve4 : 4

No. of instances for sve1 : 5
No. of instances for sve2 : 5
No. of instances for sve3 : 5
No. of instances for sve4 : 5
No. of instances for sve5 : 5

public class StaticMethodExample 
{
	static int i=0;
	static void getmethod() 
	{
		i++;
	    System.out.println("Value of i is" +i);
	}
}
class TestStatic 
{
	  public static void main(String args[]) 
	  {
		  StaticMethodExample.getmethod();
	  }
}

Value of i is 1

public class StaticBlockExample 
{
	static int[] values = new int[10];

	static 
	{
		System.out.println("Initialization block Running");
		for (int i = 0; i < values.length; i++) 
		{
		values[i] = (int) (10.0 * Math.random());
		}
	}

	void listValues() 
	{
	    for (int value : values) 
		{
			System.out.println(value);
		}
	}

	public static void main(String[] args) 
	{
		StaticBlockExample example = new StaticBlockExample();
		System.out.println("\nValue of First object:");
		example.listValues();

		example = new StaticBlockExample();
		System.out.println("\nValue of Second object:");
		example.listValues();
	}
}

Initialization block Running

Value of First object:
9
7
5
6
9
0
2
2
8
3

Value of Second object:
9
7
5
6
9
0
2
2
8
3