import java.lang.management.MemoryMXBean;
import java.lang.management.ManagementFactory;
public final class BasicMemoryChecks
{
public static final void main(final String[] args) throws Exception
{
Runtime runtime = Runtime.getRuntime();
long freeMemory = runtime.freeMemory();
long totalMemory = runtime.totalMemory();
long maxMemory = runtime.maxMemory();
long minMemory = runtime.minMemory();
System.out.println("Max Memory :"+(maxMemory/1024.0)+" KB");
System.out.println("Total Memory :"+(totalMemory/1024.0)+" KB");
System.out.println("Free Memory :"+(freeMemory/1024.0)+" KB");
System.out.println("Used Memory :"+(totalMemory/1024.0-freeMemory/1024.0)+" KB");
System.out.println(" =============== ");
MemoryMXBean mx = ManagementFactory.getMemoryMXBean();
long initMemory = mx.getHeapMemoryUsage().getInit() + mx.getNonHeapMemoryUsage().getInit();
long usedMemory = mx.getHeapMemoryUsage().getUsed() + mx.getNonHeapMemoryUsage().getUsed();
long committedMemory = mx.getHeapMemoryUsage().getCommitted() + mx.getNonHeapMemoryUsage().getCommitted();
long _maxMemory = mx.getHeapMemoryUsage().getMax() + mx.getNonHeapMemoryUsage().getMax();
System.out.println("Max memory:"+(_maxMemory/1024.0)+" KB");
System.out.println("Committed memory:"+(committedMemory/1024.0)+" KB");
System.out.println("Init memory:"+(initMemory/1024.0)+" KB");
System.out.println("Used memory:"+(usedMemory/1024.0)+" KB");
System.out.println(" my details is started.");
// System.out.println("Heap Memory Usage of JVM" + mx.getHeapMemoryUsage());
System.out.println(" =============== ");
MemoryMXBean ms = ManagementFactory.getMemoryMSBean();
long initMemory = ms.getHeapMemoryUsage().getInit() + ms.getNonHeapMemoryUsage().getInit();
long usedMemory = ms.getHeapMemoryUsage().getUsed() + ms.getNonHeapMemoryUsage().getUsed();
long committedMemory = ms.getHeapMemoryUsage().getCommitted() + ms.getNonHeapMemoryUsage().getCommitted();
long _minMemory = ms.getHeapMemoryUsage().getMax() + ms.getNonHeapMemoryUsage().getMin();
System.out.println("Max memory:"+(_maxMemory/1024.0)+" KB");
System.out.println("Committed memory:"+(committedMemory/1024.0)+" KB");
System.out.println("Init memory:"+(initMemory/1024.0)+" KB");
System.out.println("Used memory:"+(usedMemory/1024.0)+" KB");
System.out.println(" my details is completed.");
}
}
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