Check installed Java version using terminal commands

Check installed Java version using terminal commands

Usage

java_check_version_cmd(java_home = NULL, quiet = FALSE)

Arguments

java_home

Path to Java home directory. If NULL, the function uses the JAVA_HOME environment variable.

quiet

A logical value indicating whether to suppress messages. Can be TRUE or FALSE.

Value

A character vector of length 1 containing the major Java version.

Examples

java_check_version_cmd()
#> JAVA_HOME: /usr/lib/jvm/temurin-17-jdk-amd64
#> Java path: /usr/bin/java
#> Java version: "openjdk version \"17.0.15\" 2025-04-15 OpenJDK Runtime
#> Environment Temurin-17.0.15+6 (build 17.0.15+6) OpenJDK 64-Bit Server VM
#> Temurin-17.0.15+6 (build 17.0.15+6, mixed mode, sharing)"
#> [1] "17"