Exception in java

@krishbcs-5tG26c • Oct 22, 2024

Oct 22, 2024

1.2K

Exception has two types. Unchecked Exception and Checked Exception.

IOException
ClassNotFoundException
CloneNotSupportedException
IllegalAccessException
InterruptedException
NoSuchFieldException
NoSuchMethodException

These are Checked Exception.

Can you explain each exception with simple example(Error program and correction program)?

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Anoop Kumar

@anoop-kumar-GDGRCn • Feb 22, 2012

Checked Exception: You must have to handle those exceptions by yourself using try-catch or throws clause
Unckecked: JRE will take care of these things

Why Checked Exception: In case of IOException, for example you wrote a program to read a file. How can java know if file is there to read? that is why it insist you to catch this exception by yourself.
Java is telling you that somewhere it could be wrong.

Rest, explaining each exception will be a theory , I would suggest you to write programs in which these exception can occur. If will give you live practical example.
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krishbcs

@krishbcs-5tG26c • Feb 23, 2012

ianoop
Checked Exception: You must have to handle those exceptions by yourself using try-catch or throws clause
Unckecked: JRE will take care of these things

Why Checked Exception: In case of IOException, for example you wrote a program to read a file. How can java know if file is there to read? that is why it insist you to catch this exception by yourself.
Java is telling you that somewhere it could be wrong.

Rest, explaining each exception will be a theory , I would suggest you to write programs in which these exception can occur. If will give you live practical example.
thanks but i need detail each exception with examples.
0
krishbcs

@krishbcs-5tG26c • Feb 23, 2012

for example:

ArithmeticException:

Error program:

class ArithException
{
public static void main(String arg[])
{
System.out.println(2/0);
}
}

Output: ArithmeticException Error.

Correction Program:

class ArithException
{
public static void main(String arg[])
{
try{
System.out.println(2/0);
}catch(ArithmeticException)
{ System.out.println("divide by zero is not valued");
}
}

Ouptut: Divide by zero is not Valued.

I need like this for every exception.

would you help me?
0