How do I set environment variables from Java?

How do I set environment variables from Java?

java environment-variables

java

javac is not recognized as an internal or external command, operable program or batch file [closed]

java path environment-variables command-prompt javac

java

How can I get System variable value in Java?

java environment-variables

java

How to refer environment variable in POM.xml?

java maven environment-variables pom.xml

java

How to set Java environment path in Ubuntu

ubuntu environment-variables java

java

How to test code dependent on environment variables using JUnit?

java unit-testing testing junit environment-variables

java

Gradle finds wrong JAVA_HOME even though it's correctly set

java linux gradle environment-variables

java

Environment variable to control java.io.tmpdir?

java configuration environment-variables temp

java

how to read System environment variable in Spring applicationContext

java spring environment-variables

java

How to set environment variable or system property in spring tests?

java spring environment-variables spring-test

java

Tomcat - CATALINA_BASE and CATALINA_HOME variables

java tomcat environment-variables

java

Difference between System.getenv() & System.getProperty() [duplicate]

java environment-variables

java

Environment Variable with Maven

java maven environment-variables

java

what is the reason for the existence of the JAVA_HOME environment variable?

java environment-variables java-home

java

Registry Key '...' has value '1.7', but '1.6' is required. Java 1.7 is Installed and the Registry is Pointing to it

jar environment-variables java

java