[ACCEPTED]-How to get Ram size and size of Hard disk using Java?-java
Disk size:
long diskSize = new File("/").getTotalSpace();
User name:
String userName = System.getProperty("user.name");
I'm not aware of a reliable 6 way to determine total system memory in 5 Java. On a Unix system you could parse /proc/meminfo. You 4 can of course find the maximum memory available 3 to the JVM:
long maxMemory = Runtime.getRuntime().maxMemory();
Edit: for completeness (thanks Suresh 2 S), here's a way to get total memory with 1 the Oracle JVM only:
long memorySize = ((com.sun.management.OperatingSystemMXBean) ManagementFactory
.getOperatingSystemMXBean()).getTotalPhysicalMemorySize();
For Ram Size , if you are using java 1.5
java.lang.management package
com.sun.management.OperatingSystemMXBean mxbean = (com.sun.management.OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
System.out.println(mxbean.getTotalPhysicalMemorySize() + " Bytes ");
0
import java.lang.management.*;
import java.io.*;
class max
{
public static void main(String... a)
{
long diskSize = new File("/").getTotalSpace();
String userName = System.getProperty("user.name");
long maxMemory = Runtime.getRuntime().maxMemory();
long memorySize = ((com.sun.management.OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean()).getTotalPhysicalMemorySize();
System.out.println("Size of C:="+diskSize+" Bytes");
System.out.println("User Name="+userName);
System.out.println("RAM Size="+memorySize+" Bytes");
}
}
0
Have a look at this topic, which goes into detail 1 of how to get OS information such as this.
For Ram capacity: //this step get ram capacity
long 1 ram= ((com.sun.management.OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean()).getTotalPhysicalMemorySize();
long sizekb = ram /1000;
long sizemb = sizekb / 1000;
long sizegb = sizemb / 1000 ;
System.out.println("System Ram ="+sizegb+"gb");
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