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Sun Guoqiao's mock exam

 
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Here is a question from Sun Guoqiao's mock exam
public class Test021
{
public static void main(String args[])
{
RuntimeException re = null;
try
{
System.out.println("throwing exception!");
throw re;
}
catch(Exception e)
{
System.out.println("catch exception!");
}
finally
{
System.out.println("finally!");
}
}
}
My question is don't you have to have an exception in the throws clause for throwing an exception.
 
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IntelliJ IDE Java
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instances of Runtime exceptions don't have to be declared in the throws clause of the method !
HIH
Val
 
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And you don't have to declare any Exception if you catch it.
 
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