Interface DoubleEntry

All Superinterfaces:: AnnotationConstantValueEntry, ConstantValueEntry, LoadableConstantEntry, PoolEntry

public sealed interface DoubleEntry extends AnnotationConstantValueEntry, ConstantValueEntry

Models a CONSTANT_Double_info structure, representing a


double

constant, in the constant pool of a class file.

The use of a DoubleEntry is modeled by a double. Conversions are through ConstantPoolBuilder.doubleEntry(double) and doubleValue(). In the conversions, all NaN values of the double may or may not be collapsed into a single "canonical" NaN value.

A double entry has a width of 2, making its subsequent constant pool index valid and unusable.

See Java Virtual Machine Specification:

4.4.5 The CONSTANT_Long_info and CONSTANT_Double_info Structures

Since:

See Also:

Field Summary

Fields declared in interface PoolEntry

TAG_CLASS, TAG_DOUBLE, TAG_DYNAMIC, TAG_FIELDREF, TAG_FLOAT, TAG_INTEGER, TAG_INTERFACE_METHODREF, TAG_INVOKE_DYNAMIC, TAG_LONG, TAG_METHOD_HANDLE, TAG_METHOD_TYPE, TAG_METHODREF, TAG_MODULE, TAG_NAME_AND_TYPE, TAG_PACKAGE, TAG_STRING, TAG_UTF8

Method Summary

Modifier and Type	Method	Description
`double`	`doubleValue()`	Returns the `double` value.

Methods declared in interface AnnotationConstantValueEntry

constantValue

Methods declared in interface ConstantValueEntry

constantValue

Methods declared in interface LoadableConstantEntry

typeKind

Methods declared in interface PoolEntry

constantPool, index, tag, width

Method Details

doubleValue

double doubleValue()

Returns the double value.

Returns:

the double value

See Also:

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https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/classfile/constantpool/DoubleEntry.html