I am planning on utilising the software offered on this site: http://www.mh-aerotools.de/airfoils/jav ... ain_en.htm
So far, I have tried the following three options and set of directions without success:
1. https://linuxhint.com/install_java_linux_mint/
2. https://community.linuxmint.com/tutorial/view/1372
3. I opened the Software Manager in my operating system. The results are confusing to me to proceed with any installations until I receive advice.
I will begin with the terminal results from directions in step #1 above.
Code: Select all
jim@jim-LinuxMint-ASUS:~$ java - version
JVMJ9VM007E Command-line option unrecognised: -
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
jim@jim-LinuxMint-ASUS:~$ sudo apt update
[sudo] password for jim:
Ign:1 http://mirror.internode.on.net/pub/linuxmint-packages tricia InRelease
Hit:2 http://mirror.internode.on.net/pub/linuxmint-packages tricia Release
Hit:4 http://archive.canonical.com/ubuntu bionic InRelease
Hit:5 http://security.ubuntu.com/ubuntu bionic-security InRelease
Hit:6 http://archive.ubuntu.com/ubuntu bionic InRelease
Hit:7 http://ppa.launchpad.net/linuxuprising/java/ubuntu bionic InRelease
Get:8 http://dl.google.com/linux/earth/deb stable InRelease [1,807 B]
Err:8 http://dl.google.com/linux/earth/deb stable InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 78BD65473CB3BD13
Hit:9 https://linux.teamviewer.com/deb stable InRelease
Hit:10 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
Hit:11 https://updates.signal.org/desktop/apt xenial InRelease
Hit:12 http://ppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu bionic InRelease
Get:13 https://repo.skype.com/deb stable InRelease [4,502 B]
Err:13 https://repo.skype.com/deb stable InRelease
The following signatures were invalid: EXPKEYSIG 1F3045A5DF7587C3 Skype Linux Client Repository <se-um@microsoft.com>
Hit:14 http://archive.ubuntu.com/ubuntu bionic-backports InRelease
Reading package lists... Done
W: GPG error: http://dl.google.com/linux/earth/deb stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 78BD65473CB3BD13
E: The repository 'http://dl.google.com/linux/earth/deb stable InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://repo.skype.com/deb stable InRelease: The following signatures were invalid: EXPKEYSIG 1F3045A5DF7587C3 Skype Linux Client Repository <se-um@microsoft.com>
jim@jim-LinuxMint-ASUS:~$ sudo apt install default-jdk
Reading package lists... Done
Building dependency tree
Reading state information... Done
default-jdk is already the newest version (2:1.11-68ubuntu1~18.04.1).
The following packages were automatically installed and are no longer required:
eclipse-jdt eclipse-pde eclipse-platform eclipse-platform-data eclipse-rcp fastjar jarwrapper libasm3-java libcommons-dbcp-java libcommons-httpclient-java libcommons-pool-java libdb-java libdb-je-java libdb5.3-java libdb5.3-java-jni
libeasymock-java libecj-java libfelix-bundlerepository-java libfelix-gogo-command-java libfelix-gogo-shell-java libfelix-shell-java libfelix-utils-java libicu4j-4.2-java libicu4j-49-java libjavascriptcoregtk-1.0-0 libjetty9-java
libjline-java libjtidy-java liblucene2-java libobjenesis-java libswt-cairo-gtk-3-jni libswt-glx-gtk-3-jni libswt-gtk-3-java libswt-gtk-3-jni libswt-webkit-gtk-3-jni libtomcat8-java libwebkitgtk-1.0-0 linux-headers-5.4.0-89-generic
linux-hwe-5.4-headers-5.4.0-89 linux-image-5.4.0-89-generic linux-modules-5.4.0-89-generic linux-modules-extra-5.4.0-89-generic sat4j
Use 'sudo apt autoremove' to remove them.
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
jim@jim-LinuxMint-ASUS:~$ sudo apt install default-jr
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package default-jr
jim@jim-LinuxMint-ASUS:~$
All in all, it was that single error (of the extraneous space) that led you down the wrong path when all along it would likely have worked straight away.