which of these are java.lang.error in exception handling in java code example

Example 1: exception handling in java example

public class Exception8 {
public static void main(String[]args)
{
   fun1();
   fun2();
}
static void fun1()
{
   	fun3();
}
static void fun2()
{
     	fun3();
}
static void fun3()
{
	try {
	System.out.println(20/0);
	}
	catch(ArithmeticException e)
	{
		System.out.println("Zero divison ");
	}
}
}

Example 2: how many ways we can do exception handling in java

We can handle exceptions in either of the two ways :
1) By specifying try catch block where we can catch the exception.
2) Declaring a method with throws clause