How can I check CPU and Memory Usage in Java?

Question

Aryan Kumar · Answer

Sure, here are some ways to check CPU and memory usage in Java:
Using the OperatingSystemMXBean class: The
OperatingSystemMXBean class provides methods for getting information about the operating system, including CPU usage and memory usage. Here is an example of how to use the
OperatingSystemMXBean class to get CPU usage:
Java
import java.lang.management.OperatingSystemMXBean;
public class CPUUsage {
    public static void main(String[] args) {
        OperatingSystemMXBean osBean = ManagementFactory.getOperatingSystemMXBean();
        double cpuUsage = osBean.getSystemLoadAverage();
        System.out.println("CPU usage: " + cpuUsage);
    }
}
Using the MemoryMXBean class: The
MemoryMXBean class provides methods for getting information about the memory usage of the Java Virtual Machine (JVM). Here is an example of how to use the
MemoryMXBean class to get memory usage:
Java
import java.lang.management.MemoryMXBean;
public class MemoryUsage {
    public static void main(String[] args) {
        MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
        long usedMemory = memoryMXBean.getHeapMemoryUsage().getUsed();
        long freeMemory = memoryMXBean.getHeapMemoryUsage().getFree();
        System.out.println("Used memory: " + usedMemory);
        System.out.println("Free memory: " + freeMemory);
    }
}
Using the JMX API: The Java Management Extensions (JMX) API provides a way to manage Java applications and components. The JMX API can be used to get information about CPU and memory usage, as well as other metrics. Here is an example of how to use the JMX API to get CPU usage:
Java
import javax.management.MBeanServer;
import javax.management.ObjectName;
public class CPUUsage {
    public static void main(String[] args) {
        MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
        ObjectName objectName = new ObjectName("java.lang:type=OperatingSystem");
        Double cpuUsage = (Double) mBeanServer.getAttribute(objectName, "SystemLoadAverage");
        System.out.println("CPU usage: " + cpuUsage);
    }
}

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How can I check CPU and Memory Usage in Java?

Utpal Vishwas

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