The fact that PrintWriter
‘s method is called append()
doesn’t mean that it changes mode of the file being opened.
You need to open file in append mode as well:
PrintWriter pw = new PrintWriter(new FileOutputStream( new File("persons.txt"), true /* append = true */));
Also note that file will be written in system default encoding. It’s not always desired and may cause interoperability problems, you may want to specify file encoding explicitly.
Related Posts:
- error: unreported exception FileNotFoundException; must be caught or declared to be thrown
- How to use PrintWriter and File classes in Java?
- What does “Could not find or load main class” mean?
- Implementing UML diagram to Java [closed]
- Reading a plain text file in Java
- Converting double to string
- What is the “continue” keyword and how does it work in Java?
- Java String new line
- What does the protected modifier mean?
- Java default constructor
- What is the meaning of “this” in Java?
- ‘Java’ is not recognized as an internal or external command
- Java: Identifier expected
- How does Java’s PriorityQueue differ from a min-heap?
- java.lang.ClassNotFoundException: com.mysql.jdbc.Driver in Eclipse
- Basic calculator in Java
- Converting double to integer in Java
- Difference between HashSet and HashMap?
- How to split a String by space
- Java compile error: “reached end of file while parsing }”
- Getting a HeadlessException: No X11 DISPLAY variable was set
- What is the exact meaning of instantiate in JAVA
- Exception in thread “main” java.util.NoSuchElementException: No line found
- Java Method Call Expected
- Double % formatting question for printf in Java
- in java what does the @ symbol mean?
- How to call a method in another class in Java?
- unreported exception java.io.FileNotFoundException; must be caught or declared to be thrown
- Error creating bean with name ‘entityManagerFactory’ defined in class path resource : Invocation of init method failed
- Java, “Variable name” cannot be resolved to a variable
- Printing out a linked list using toString
- Using @RequestLine with Feign
- What is the best/simplest way to read in an XML file in Java application?
- Received fatal alert: handshake_failure through SSLHandshakeException
- DB2 SQL Error: SQLCODE=-204, SQLSTATE=42704
- Why would a “java.net.ConnectException: Connection timed out” exception occur when URL is up?
- HashSet vs. ArrayList
- FIFO based Queue implementations?
- How to import a .cer certificate into a java keystore?
- Exception in thread “main” java.lang.ArrayIndexOutOfBoundsException: 0 error in Java
- How can I represent a range in Java?
- How to solve error: ‘;’ expected in Java?
- InvalidKeyException Illegal key size
- Collections.emptyMap() vs new HashMap()
- java howto ArrayList push, pop, shift, and unshift
- Error Message: Can’t determine a valid Java Home
- How can I fix ‘android.os.NetworkOnMainThreadException’?
- Eclipse does not start when I run the exe?
- How to print to the console in Android Studio?
- java.lang.NumberFormatException: null i
- How do you #include files in java?
- How to use Java in Visual Studio 2017
- it throws me error incompatible types: unexpected return value — return 10; please correct it make note where i am doing wrong code?
- Caused by: java.security.UnrecoverableKeyException: Cannot recover key
- How can I truncate a double to only two decimal places in Java?
- How do I add a simple jQuery script to WordPress?
- I get the error int cannot be converted to boolean?c
- Can’t install JDK 9 because “Another Java installation is in progress”
- java.sql.SQLException: No database selected – why?
- Java: How to access methods from another class
- Cannot make a static reference to the non-static method fxn(int) from the type Two
- What is causing this Java “Cannot find symbol” error?
- What does equals(Object obj) do?
- How do I make the method return type generic?
- keytool error bash: keytool: command not found
- Java Error: The constructor is undefined
- Java Embedding Into HTML
- Why it is mandatory to use “throws IOException”
- Terminating a Java Program
- How to add an image to a JPanel?
- Cannot issue data manipulation statements with executeQuery()
- Why do some classes require main methods and others do not?
- java.util.IllegalFormatConversionException
- What do F and D mean at the end of numeric literals?
- Coding Conventions – Naming Enums
- Sort ArrayList of custom Objects by property
- Java better way to delete file if exists
- How to send HTTP request in java? [duplicate]
- Best way to represent a fraction in Java?
- java IO Exception: Stream Closed
- Can a normal Class implement multiple interfaces?
- What kind of Java type is “[B”?
- Java equivalent to C# extension methods
- Java: is there an easy way to select a subset of an array?
- void is an invalid type for this variable
- syntax error: insert } to complete ClassBody
- How to print the value of variable in java [duplicate]
- File to byte[] in Java
- Eclipse: JVM terminated. Exit code=2
- How to programmatically close a JFrame
- Playing .mp3 and .wav in Java?
- Difference between jar and war in Java
- Adding image to JFrame
- XY Plotting with Java
- Mockito : doAnswer Vs thenReturn
- How Do I Implement an Insertion Sort Method for A Generic ArrayList?
- Troubleshooting “The type parameter T is hiding the type T” warning
- model.addAttribute() parameters
- StringFormat for Java Boolean Operator
- JOptionPane Yes or No window