RuntimeException

java.lang.Object
- java.lang.Throwable
- - java.lang.Exception
  - - java.lang.RuntimeException

All Implemented Interfaces:

Serializable, Modified

Direct Known Subclasses:

ArithmeticException, ArrayStoreException, ClassCastException, IllegalArgumentException, IndexOutOfBoundsException, NegativeArraySizeException, NullPointerException
```
public class RuntimeException
extends Exception
```
RuntimeException is the superclass of all classes that represent exceptional conditions which occur as a result of executing an application in the VM. Unlike checked exceptions (exceptions where the type doesn't extend RuntimeException or Error), the compiler does not require code to handle runtime exceptions.

See Also:

Serialized Form

Field Summary
- Fields inherited from class java.lang.Throwable
  addr, message

Constructor Summary

Constructors
Constructor	Description
`RuntimeException()`	Constructs a new `RuntimeException` that includes the current stack trace.
`RuntimeException(String detailMessage)`	Constructs a new `RuntimeException` with the current stack trace and the specified detail message.
`RuntimeException(String detailMessage, Throwable throwable)`	Constructs a new `RuntimeException` with the current stack trace, the specified detail message and the specified cause.
`RuntimeException(Throwable throwable)`	Constructs a new `RuntimeException` with the current stack trace and the specified cause.

Method Summary
- Methods inherited from class java.lang.Throwable
  getMessage, printStackTrace, printStackTrace, toString
- Methods inherited from class java.lang.Object
  equals, getClass, hashCode

- Constructor Detail
  - RuntimeException
```
public RuntimeException()
```
    Constructs a new RuntimeException that includes the current stack trace.
  - RuntimeException
```
public RuntimeException(String detailMessage)
```
    Constructs a new RuntimeException with the current stack trace and the specified detail message.
    
    Parameters:
    
    detailMessage - the detail message for this exception.
  - RuntimeException
```
public RuntimeException(String detailMessage,
                        Throwable throwable)
```
    Constructs a new RuntimeException with the current stack trace, the specified detail message and the specified cause.
    
    Parameters:
    
    detailMessage - the detail message for this exception.
    
    throwable - the cause of this exception.
  - RuntimeException
```
public RuntimeException(Throwable throwable)
```
    Constructs a new RuntimeException with the current stack trace and the specified cause.
    
    Parameters:
    
    throwable - the cause of this exception.