Java Utililty Methods Memory

List of utility methods to do Memory

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Description

The list of methods to do Memory are organized into topic(s).

Method

booleanisDefaultMemoryCardDrive(String aRoot)
is Default Memory Card Drive 
if (aRoot.equalsIgnoreCase(iDefaultMemoryCard)) {
    return true;
return false;
booleanisInMemoryDatabase(final String databasePath)
is In Memory Database 
return MEMORY_STORE_LOCATION.equals(databasePath);
booleanisMemoryAccess(final String value)
Checks whether a string is a memory access identifier string. 
return value.equals("[");
booleanisMemoryData(String metric)
is Memory Data 
if (metric == null) {
    return false;
if (metric.indexOf("mem") > -1) {
    return true;
return false;
booleanisMemorySufficient()
is Memory Sufficient 
final long maxMemory = ((Runtime.getRuntime().maxMemory() / 1024) / 1024);
final long freeMemory = ((Runtime.getRuntime().freeMemory() / 1024) / 1024);
if ((freeMemory) < ((1 * maxMemory) / 100)) {
    return false;
return true;
voidlogMemoryStats(String msg)
Log statistics on memory to stderr. 
Runtime rt = Runtime.getRuntime();
System.err.println(
        msg + ": total=" + (rt.totalMemory() / 1024) + "KB, free=" + (rt.freeMemory() / 1024) + "KB");
longmakeVmMemoryDivisibleBy4(long memory)
make Vm Memory Divisible By 
if ((memory % 4) == 0) {
    return memory;
} else {
    long temp = memory / 4;
    return temp * 4;
voidmeasureMemoryBefore()
measure Memory Before 
measureMemory("Before");
Stringmemory()
memory 
Runtime r = Runtime.getRuntime();
long max = r.maxMemory() / 1000;
return "memory (used/free/max): " + (max - freeMemory()) / 1000 + "/" + freeMemory() / 1000 + "/"
        + r.maxMemory() / 1000000;
Stringmemory()
memory 
String str = "";
str += "memory : "
        + ((double) Runtime.getRuntime().freeMemory() / (double) Runtime.getRuntime().totalMemory()) * 100
        + "% free<br>";
str += "memory total : " + Runtime.getRuntime().totalMemory() + "<br>";
str += "memory free : " + Runtime.getRuntime().freeMemory() + "<br>";
return str;