#runtime exec method

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Java: Runtime Class

Every Java application has a single instance of class java.lang.Runtime to interact with java runtime environment(JRE) in which the application is running. This class provides a method to invoke GC, get total and free memory and execute a process, etc.

We can get application current runtime by getRuntime() method but we can’t create our own instance of Runtime.

Runtime runtime=Runtime.getRuntime()

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