public class RuntimeException extends Exception
RuntimeException
is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.
RuntimeException
and its subclasses are unchecked exceptions. Unchecked exceptions do not need to be declared in a method or constructor's throws
clause if they can be thrown by the execution of the method or constructor and propagate outside the method or constructor boundary.
Modifier | Constructor and Description |
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RuntimeException()
Constructs a new runtime exception with null as its detail message.
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RuntimeException(String message)
Constructs a new runtime exception with the specified detail message.
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RuntimeException(String message, Throwable cause)
Constructs a new runtime exception with the specified detail message and cause.
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protected |
RuntimeException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace)
Constructs a new runtime exception with the specified detail message, cause, suppression enabled or disabled, and writable stack trace enabled or disabled.
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RuntimeException(Throwable cause)
Constructs a new runtime exception with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause).
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addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
public RuntimeException()
null
as its detail message. The cause is not initialized, and may subsequently be initialized by a call to Throwable.initCause(java.lang.Throwable)
.
public RuntimeException(String message)
Throwable.initCause(java.lang.Throwable)
.
message
- the detail message. The detail message is saved for later retrieval by the Throwable.getMessage()
method.
public RuntimeException(String message, Throwable cause)
Note that the detail message associated with cause
is not automatically incorporated in this runtime exception's detail message.
message
- the detail message (which is saved for later retrieval by the Throwable.getMessage()
method).
cause
- the cause (which is saved for later retrieval by the Throwable.getCause()
method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
public RuntimeException(Throwable cause)
cause
- the cause (which is saved for later retrieval by the Throwable.getCause()
method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
protected RuntimeException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace)
message
- the detail message.
cause
- the cause. (A null
value is permitted, and indicates that the cause is nonexistent or unknown.)
enableSuppression
- whether or not suppression is enabled or disabled
writableStackTrace
- whether or not the stack trace should be writable
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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