Java Memory Usage getMemoryUsage()

Description

Return the Difference (in MegaBytes) between the first sampled free memory and current free memory

License

Open Source License

Return

A positive number if there is less memory and a negative number if there is more

Declaration

public static double getMemoryUsage() 

Method Source Code

//package com.java2s;

public class Main {
    static long startMemory;
    public final static int KILO = 1024;

    /**//from w  w w  . ja v a 2s  . co  m
     * Return the Difference (in MegaBytes) between the first sampled free memory and current
     * free memory
     * @return   A positive number if there is less memory and a negative number if there is more
     */
    public static double getMemoryUsage() {
        long diff = startMemory - Runtime.getRuntime().freeMemory();
        return ConvertByteToMegaByte(diff);
    }

    public static double ConvertByteToMegaByte(long byteUnits) {
        return (double) byteUnits / (KILO * KILO);
    }
}

Related

1. getMemoryInfo()
2. getMemoryInfo()
3. getMemorySize(long size)
4. getMemoryStatus()
5. getMemoryUsage()
6. getMemoryUsage()
7. getMemoryUsage()
8. getMemoryUsage()
9. getMemoryUsage()