Java Utililty Methods Memory Free

boolean belowMemoryLimit(int percentFree)
below Memory Limit

long max = Runtime.getRuntime().maxMemory() / 1000;
long free = freeMemory();
if ((double) free / max * 100 < percentFree)
 return true;
return false;

boolean checkFreeMemory(long requiredMemory)
Check if there is enough free memory.

if (Runtime.getRuntime().freeMemory() >= requiredMemory) {
 return true;
return false;

String formatMemorySize(Long afreeDiskSpace)
format Memory Size

freeDiskSpace = afreeDiskSpace;
if (afreeDiskSpace < 1024) {
 return "Free Disk Space: " + afreeDiskSpace + "B";
} else if (afreeDiskSpace < 1048576) {
 return "Free Disk Space: " + afreeDiskSpace / 1024 + "KB";
} else if (afreeDiskSpace < 1073741824) {
 return "Free Disk Space: " + afreeDiskSpace / 1048576 + "MB";
} else {
...

long freeAllocatedMemory()
Returns the amount of free memory in the Java Virtual Machine.

return Runtime.getRuntime().freeMemory();

long freeMemory()
free Memory

return Runtime.getRuntime().freeMemory();

void freeMemory()
Utility to free memory

long total = Runtime.getRuntime().totalMemory();
for (int i = 0; i < 10; i++) {
 System.gc();
while (true) {
 System.gc();
 long newtotal = Runtime.getRuntime().totalMemory();
 if ((((double) (total - newtotal)) / (double) total) < 0.1) {
...

void freeMemory()
free Memory

try {
 System.gc();
 System.gc();
 Thread.currentThread().sleep(250);
 System.runFinalization();
 System.runFinalization();
 Thread.currentThread().sleep(250);
 System.gc();
...

long freeMemory()
Wrapper around Runtime.getRuntime().freeMemory()

return Runtime.getRuntime().freeMemory();

long freeMemory()
free Memory

return runtime.freeMemory();

int freeMemorym()
free Memorym

return (int) Math.floor((freeMemoryb() / megabytes));