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In java exception is an object. Exceptions are created when an abnormal
situations are arised in our program. Exceptions can be created by JVM or
by our application code. All Exception classes are defined in java.lang.
In otherwords we can say Exception as run time error.
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An exception is an event, which occurs during the execution of a
program, that disrupts the normal flow of the program's instructions.
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There are mainly two types of exceptions in Java as follows:
1. Checked exception.
2. Unchecked exception.
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public class JavaExceptionExample{
public static void main(String args[]){
try{
//code that may raise exception
int data=100/0;
}catch(ArithmeticException e){System.out.println(e);}
//rest code of the program
System.out.println("rest of the code...");
}
}
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public class JavaExceptionExample extends Exception{
public JavaExceptionExample(){
}
public JavaExceptionExample(String s){
//String parameter which is the detail message of the exception.
}
}
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Exception is an abnormal condition.
There are mainly two types of exceptions: checked and unchecked.
An error is considered as the unchecked exception. However, according to Oracle,
there are three types of exceptions namely:
1. Checked Exception
2. Unchecked Exception
3. Error
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try {
System.out.println("I am in try block");
} catch(Exception ex){
ex.printStackTrace();
} finally {
System.out.println("I am in finally block");
}