Installing XLConnect package - r

Question

I was wanting to install XLConnect package so that i could save my databses created from RSQLite in different formats. But when i do
install.packages("XLConnect")
it seems to give error
checking whether Java run-time works... ./configure: line 3747: /usr/lib/jvm/default-java/bin/java: No such file or directory
no
configure: error: Java interpreter '/usr/lib/jvm/default-java/bin/java' does not work
ERROR: configuration failed for package ‘rJava’
* removing ‘/home/mrshekar/R/x86_64-pc-linux-gnu-library/3.4/rJava’
Warning in install.packages :
installation of package ‘rJava’ had non-zero exit status
ERROR: dependency ‘rJava’ is not available for package ‘XLConnectJars’
* removing ‘/home/mrshekar/R/x86_64-pc-linux-gnu-library/3.4/XLConnectJars’
Warning in install.packages :
installation of package ‘XLConnectJars’ had non-zero exit status
ERROR: dependencies ‘XLConnectJars’, ‘rJava’ are not available for package ‘XLConnect’
* removing ‘/home/mrshekar/R/x86_64-pc-linux-gnu-library/3.4/XLConnect’
Warning in install.packages :
installation of package ‘XLConnect’ had non-zero exit status
Now i read on R: rJava package install failing about the
export JAVA_HOME=/usr/lib/jvm/java-6-sun/jre
export PATH=$PATH:$JAVA_HOME/bin
but still the problem seeems to persist. Also if you look at the solution on Error of java path on loading rJava package
sudo R CMD javareconf
It gives the error
*** JAVA_HOME is not a valid path, ignoring
*** Cannot find any Java interpreter
*** Please make sure 'java' is on your PATH or set JAVA_HOME correspondingly
Also for the install JDK answer
apt-get install r-cran-rjava
I get the permission denied error even if i do it on vm-virtual box it gives me permission denied for the ubuntu 18.04 version i have installed and made myself the admin.
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
What should i do? Please help.