package jsearch; import java.beans.XMLEncoder; import java.io.*; import javax.swing.*; public class XMLWrite { public XMLWrite() { XMLEncoder e = new XMLEncoder( new BufferedOutputStream( new FileOutputStream("Test.xml"))); e.writeObject(new JButton("Hello, world")); e.close(); } } ****************************************** init: deps-jar: Compiling 5 source files to C:\Users\Varre\Desktop\school\java\inluppVarre\build\classes C:\Users\Varre\Desktop\school\java\inluppVarre\src\inluppvarre\XMLWrite.java:17: unreported exception java.io.FileNotFoundException; must be caught or declared to be thrown new FileOutputStream("Test.xml"))); Note: Some input files use unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 1 error BUILD FAILED (total time: 0 seconds)