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JAVA Exceptions
Program Errors Errors Compile Time Errors Run Time Errors Syntex Errors Compiler Version Errors Logical Errors Resource Errors Exceptions
try..catch block try { statements expected to raise exception; } catch(ExceptionType1 object) { remedy coed.. } catch(ExceptionType2 object) { remedy code.. } ……………
public interface java.lang.Throwable This abstracts the methods needed to handle exception. Methods (All of The Below Are public abstrract) String toString() String getMessage()
public class java.lang.Exception This is the class that implements Throwable interface. This is the super class for any exception class in java. Methods (All of The Below Are public) String toString() String getMessage()
Some Majorly Used Exceptions java.lang.Exception Java.io.IOException Java.lang.ArrayIndexOutOfBoundsException Java.lang.NumberFormatException Java.lang.ArithmeticException Java.sql.SQLException … And many other
throw and throws keywords throw This keyword is used to raise an exception explicitly. Generally employed in User Defined Exception Handling throws   This keyword is used to transfer the exception raised in a function to the calling function of the same. The function which actually has the exception  will not handle it, but the calling function does it.

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exception handling in java

  • 2. Program Errors Errors Compile Time Errors Run Time Errors Syntex Errors Compiler Version Errors Logical Errors Resource Errors Exceptions
  • 3. try..catch block try { statements expected to raise exception; } catch(ExceptionType1 object) { remedy coed.. } catch(ExceptionType2 object) { remedy code.. } ……………
  • 4. public interface java.lang.Throwable This abstracts the methods needed to handle exception. Methods (All of The Below Are public abstrract) String toString() String getMessage()
  • 5. public class java.lang.Exception This is the class that implements Throwable interface. This is the super class for any exception class in java. Methods (All of The Below Are public) String toString() String getMessage()
  • 6. Some Majorly Used Exceptions java.lang.Exception Java.io.IOException Java.lang.ArrayIndexOutOfBoundsException Java.lang.NumberFormatException Java.lang.ArithmeticException Java.sql.SQLException … And many other
  • 7. throw and throws keywords throw This keyword is used to raise an exception explicitly. Generally employed in User Defined Exception Handling throws This keyword is used to transfer the exception raised in a function to the calling function of the same. The function which actually has the exception will not handle it, but the calling function does it.