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AssertionError.javaAPI DocJava SE 5 API4731Fri Aug 26 14:57:00 BST 2005java.lang

AssertionError

public class AssertionError extends Error
Thrown to indicate that an assertion has failed.

The seven one-argument public constructors provided by this class ensure that the assertion error returned by the invocation:

new AssertionError(expression)
has as its detail message the string conversion of expression (as defined in The Java Language Specification, Second Edition, Section 15.18.1.1), regardless of the type of expression.
version
1.7, 12/19/03
since
JDK1.4

Fields Summary
Constructors Summary
public AssertionError()
Constructs an AssertionError with no detail message.

    
private AssertionError(String detailMessage)
This internal constructor does no processing on its string argument, even if it is a null reference. The public constructors will never call this constructor with a null argument.

        super(detailMessage);
    
public AssertionError(Object detailMessage)
Constructs an AssertionError with its detail message derived from the specified object, which is converted to a string as defined in The Java Language Specification, Second Edition, Section 15.18.1.1.

If the specified object is an instance of Throwable, it becomes the cause of the newly constructed assertion error.

param
detailMessage value to be used in constructing detail message
see
Throwable#getCause()

        this("" +  detailMessage);
        if (detailMessage instanceof Throwable)
            initCause((Throwable) detailMessage);
    
public AssertionError(boolean detailMessage)
Constructs an AssertionError with its detail message derived from the specified boolean, which is converted to a string as defined in The Java Language Specification, Second Edition, Section 15.18.1.1.

param
detailMessage value to be used in constructing detail message

        this("" +  detailMessage);
    
public AssertionError(char detailMessage)
Constructs an AssertionError with its detail message derived from the specified char, which is converted to a string as defined in The Java Language Specification, Second Edition, Section 15.18.1.1.

param
detailMessage value to be used in constructing detail message

        this("" +  detailMessage);
    
public AssertionError(int detailMessage)
Constructs an AssertionError with its detail message derived from the specified int, which is converted to a string as defined in The Java Language Specification, Second Edition, Section 15.18.1.1.

param
detailMessage value to be used in constructing detail message

        this("" +  detailMessage);
    
public AssertionError(long detailMessage)
Constructs an AssertionError with its detail message derived from the specified long, which is converted to a string as defined in The Java Language Specification, Second Edition, Section 15.18.1.1.

param
detailMessage value to be used in constructing detail message

        this("" +  detailMessage);
    
public AssertionError(float detailMessage)
Constructs an AssertionError with its detail message derived from the specified float, which is converted to a string as defined in The Java Language Specification, Second Edition, Section 15.18.1.1.

param
detailMessage value to be used in constructing detail message

        this("" +  detailMessage);
    
public AssertionError(double detailMessage)
Constructs an AssertionError with its detail message derived from the specified double, which is converted to a string as defined in The Java Language Specification, Second Edition, Section 15.18.1.1.

param
detailMessage value to be used in constructing detail message

        this("" +  detailMessage);
    
Methods Summary