AkousaNumberFormatExceptionA string cannot be parsed as a number.
The string contains characters that are not valid for the target numeric type. This happens with Integer.parseInt(), Double.parseDouble(), and similar methods when the input is not a well-formed number.
Validate the string before parsing. Use try-catch to handle invalid input. Trim whitespace from the string. Check for null or empty strings before parsing.
Integer.parseInt("abc");BufferUnderflowExceptionA read operation on a buffer exceeds the remaining data.
ClosedChannelExceptionAn operation is attempted on a channel that has been closed.
ExceptionInInitializerErrorAn exception is thrown during the execution of a static initializer block.
UnsupportedOperationExceptionAn operation is not supported by the implementation.
StackOverflowErrorThe call stack has exceeded its maximum size, usually due to deep or infinite recursion.
OutOfMemoryErrorThe JVM has exhausted its available heap memory.