rjava error
Sys.setenv(JAVA_HOME='C:\\Program Files\\Java\\jre1.8.0_144')rjava error
Sys.setenv(JAVA_HOME='C:\\Program Files\\Java\\jre1.8.0_144')What is an error in Java
Error is the subclass of Throwable class in java. When errors are caused
by our program we call that as Exception, but sometimes exceptions are
caused due to some environment issues such as running out of memory.
In such cases we can’t handle the exceptions.
Exceptions which cannot be recovered are called as errors in java.
Ex : Out of memory issuesexception java
1.Unchecked: occurs during run time
2.Checked Exceptions:occurs during the compile time.
needs to be handled IMMEDIATELY
Exception handling: try & catch: blocks, used for handling the exception
throws keyword is used within the method signature
disadvantage is: throws keyword whoever calls the method
will have to handle the exception again but with
try/catch you handle once. Try/catch is better way to handle it
in utility class. Next time you call method you don’t get any exceptions
most common Exception like NullPointerExceptio,
ArrayIndexOutOfBound, ClassNotFoundException, IOException.
are unchecked and they are descended from java.lang.RuntimeException
In Selenium: nosuchelement, nostaleexception, nosuchaframe
In SQL: SQL exceptionCopyright © 2021 Codeinu
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