安装rJava

install.packages("rJava")

library(rJava)

.jinit()

s<-.jnew("java/lang/String","Hello World!")

s

输出：

[1] "Java-Object{Hello World!}"

环境变量Path

;%R_HOME%in;%R_HOME%inx64;%R_HOME%library Javajri;%R_HOME%library Javajrix64;