Khắc phục lỗi code Apache NetBeans IDE không hiện chữ Việt có dấu

B1. Thoát Apache NetBeans IDE và mở têp netbeans.conf
- Mặc định trong đường dẫn: C:Program FilesNetBeans-12.6 etbeansetc etbeans.conf
B2. Thêm UTF-8.
- Tìm đến dòng 66: netbeans_default_options=
- Thêm vào: -J-Dfile.encoding=UTF-8 vào sau netbeans_default_options=" được như sau:

netbeans_default_options="-J-Dfile.encoding=UTF-8 -J-XX:+UseStringDeduplication -J-Xss2m  -J-Dapple.laf.useScreenMenuBar=true -J-Dapple.awt.graphics.UseQuartz=true -J-Dsun.java2d.noddraw=true -J-Dsun.java2d.dpiaware=true -J-Dsun.zip.disableMemoryMapping=true -J-Dplugin.manager.check.updates=false -J-Dnetbeans.extbrowser.manual_chrome_plugin_install=yes -J--add-opens=java.base/java.net=ALL-UNNAMED -J--add-opens=java.base/java.lang.ref=ALL-UNNAMED -J--add-opens=java.base/java.lang=ALL-UNNAMED -J--add-opens=java.base/java.security=ALL-UNNAMED -J--add-opens=java.base/java.util=ALL-UNNAMED -J--add-opens=java.desktop/javax.swing.plaf.basic=ALL-UNNAMED -J--add-opens=java.desktop/javax.swing.text=ALL-UNNAMED -J--add-opens=java.desktop/javax.swing=ALL-UNNAMED -J--add-opens=java.desktop/java.awt=ALL-UNNAMED -J--add-opens=java.desktop/java.awt.event=ALL-UNNAMED -J--add-opens=java.prefs/java.util.prefs=ALL-UNNAMED -J--add-opens=jdk.jshell/jdk.jshell=ALL-UNNAMED -J--add-modules=jdk.jshell -J--add-exports=java.desktop/sun.awt=ALL-UNNAMED -J--add-exports=java.desktop/java.awt.peer=ALL-UNNAMED -J--add-exports=java.desktop/com.sun.beans.editors=ALL-UNNAMED -J--add-exports=java.desktop/sun.swing=ALL-UNNAMED -J--add-exports=java.desktop/sun.awt.im=ALL-UNNAMED -J--add-exports=java.desktop/com.sun.java.swing.plaf.motif=ALL-UNNAMED -J--add-exports=jdk.internal.jvmstat/sun.jvmstat.monitor=ALL-UNNAMED -J--add-exports=java.management/sun.management=ALL-UNNAMED -J--add-exports=java.base/sun.reflect.annotation=ALL-UNNAMED -J--add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED -J--add-exports=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED -J--add-exports=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED -J--add-exports=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED -J--add-exports=jdk.compiler/com.sun.tools.javac.jvm=ALL-UNNAMED -J--add-exports=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED -J--add-exports=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED -J--add-exports=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED -J--add-exports=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED -J--add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED -J--add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED  -J--add-opens=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED -J--add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED -J--add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED -J--add-opens=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED -J--add-opens=jdk.compiler/com.sun.tools.javac.jvm=ALL-UNNAMED -J--add-opens=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED -J--add-opens=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED -J--add-opens=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED -J--add-opens=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED -J--add-opens=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED -J--add-opens=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED -J--add-exports=jdk.jdeps/com.sun.tools.classfile=ALL-UNNAMED -J--add-exports=jdk.jdeps/com.sun.tools.javap=ALL-UNNAMED -J--add-opens=java.desktop/sun.awt.X11=ALL-UNNAMED -J--add-opens=java.desktop/javax.swing.plaf.synth=ALL-UNNAMED -J--add-opens=java.desktop/com.sun.java.swing.plaf.gtk=ALL-UNNAMED -J--add-opens=java.desktop/sun.awt.shell=ALL-UNNAMED -J--add-opens=java.desktop/sun.awt.im=ALL-UNNAMED -J--add-opens=java.base/java.nio=ALL-UNNAMED  -J-XX:+IgnoreUnrecognizedVMOptions"

B3. Lưu lại.