java.io.PrintWriter
E937651
java.io.PrintWriter is a character-based output stream class in Java that provides convenient methods for writing formatted text data to various destinations such as files, network connections, or in-memory buffers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| java.io.PrintWriter canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11656539 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: java.io.PrintWriter Context triple: [DriverManager, loggingTarget, java.io.PrintWriter]
-
A.
JsonWriter
JsonWriter is a Jakarta JSON Processing API component used to write JSON data to an output stream or writer in a structured and efficient manner.
-
B.
System.IO.TextWriter
System.IO.TextWriter is an abstract base class in .NET that provides a framework for writing a sequential series of characters to various output targets such as streams, strings, or files.
-
C.
System.IO.StreamWriter
System.IO.StreamWriter is a .NET class used to write characters to streams such as files, memory, or network resources with support for encoding and buffering.
-
D.
PrintDocumentAdapter API
The PrintDocumentAdapter API is an Android interface that lets apps generate and manage printable content for the system print framework.
-
E.
PrintService API
PrintService API is an Android interface that allows apps and print service plugins to integrate with the system print framework to discover printers and manage print jobs.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: java.io.PrintWriter Target entity description: java.io.PrintWriter is a character-based output stream class in Java that provides convenient methods for writing formatted text data to various destinations such as files, network connections, or in-memory buffers.
-
A.
JsonWriter
JsonWriter is a Jakarta JSON Processing API component used to write JSON data to an output stream or writer in a structured and efficient manner.
-
B.
System.IO.TextWriter
System.IO.TextWriter is an abstract base class in .NET that provides a framework for writing a sequential series of characters to various output targets such as streams, strings, or files.
-
C.
System.IO.StreamWriter
System.IO.StreamWriter is a .NET class used to write characters to streams such as files, memory, or network resources with support for encoding and buffering.
-
D.
PrintDocumentAdapter API
The PrintDocumentAdapter API is an Android interface that lets apps generate and manage printable content for the system print framework.
-
E.
PrintService API
PrintService API is an Android interface that allows apps and print service plugins to integrate with the system print framework to discover printers and manage print jobs.
- F. None of above. chosen
Statements (72)
| Predicate | Object |
|---|---|
| instanceOf |
Java class
ⓘ
character-based output stream ⓘ |
| autoFlushBehavior |
flushes on format when autoFlush is true
ⓘ
flushes on printf when autoFlush is true ⓘ flushes on println when autoFlush is true ⓘ |
| belongsTo | Java Platform, Standard Edition NERFINISHED ⓘ |
| commonUsage |
writing HTTP responses in servlets
ⓘ
writing logs ⓘ writing text files ⓘ |
| designGoal |
avoid throwing IOExceptions on most methods
ⓘ
provide convenient text output methods ⓘ |
| documentedIn | Java SE API documentation NERFINISHED ⓘ |
| encodingControl |
can use specified charset when constructed with file name and charset
ⓘ
uses platform default charset when constructed with OutputStream ⓘ |
| errorHandling |
exposes error state via checkError()
ⓘ
records I/O errors internally ⓘ |
| extends | java.io.Writer NERFINISHED ⓘ |
| hasConstructor |
PrintWriter(File file)
ⓘ
PrintWriter(File file, String csn) ⓘ PrintWriter(OutputStream out) ⓘ PrintWriter(OutputStream out, boolean autoFlush) ⓘ PrintWriter(String fileName) NERFINISHED ⓘ PrintWriter(String fileName, String csn) ⓘ PrintWriter(Writer out) ⓘ PrintWriter(Writer out, boolean autoFlush) ⓘ |
| hasMethod |
append(CharSequence csq)
ⓘ
append(CharSequence csq, int start, int end) ⓘ append(char c) ⓘ checkError() ⓘ close() ⓘ flush() ⓘ format(String format, Object... args) ⓘ print(Object obj) ⓘ print(String s) ⓘ print(boolean b) ⓘ print(char c) ⓘ print(char[] s) ⓘ print(double d) ⓘ print(float f) ⓘ print(int i) ⓘ print(long l) ⓘ printf(String format, Object... args) ⓘ println() ⓘ println(Object x) ⓘ println(String x) ⓘ println(boolean x) ⓘ println(char x) ⓘ println(char[] x) ⓘ println(double x) ⓘ println(float x) ⓘ println(int x) ⓘ println(long x) ⓘ write(String s, int off, int len) ⓘ write(char[] buf, int off, int len) ⓘ write(int c) ⓘ |
| package | java.io ⓘ |
| since | JDK 1.1 NERFINISHED ⓘ |
| supports |
append operations
ⓘ
auto flushing ⓘ character output ⓘ formatted output ⓘ line-based output ⓘ printf-style formatting ⓘ text output ⓘ writing to OutputStream ⓘ writing to StringBuffer ⓘ writing to StringBuilder ⓘ writing to Writer ⓘ writing to files ⓘ writing to in-memory buffers ⓘ writing to network connections via streams ⓘ |
| threadSafety | not guaranteed to be thread-safe ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: java.io.PrintWriter Description of subject: java.io.PrintWriter is a character-based output stream class in Java that provides convenient methods for writing formatted text data to various destinations such as files, network connections, or in-memory buffers.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.