In this Tutorial we make you a code that helps you in understanding Get Usage
Memory. The class Memory Usage include the main method, that contain the
following method -
!)Runtime.getRuntime( ).total Memory ( ) - This method return you
the total amount of memory that your java program allocate inside JVM.
2)Runtime.getRuntime( ).free Memory ( ) - This method return you
the total amount of free memory available that your program allocate
The variable usage memory is calculated by subtracting total memory and free memory. Finally
the println print the Total, Free and Usage memory.
MemoryUsage.java
public class MemoryUsage {
public static void main(String args[]) {
long totalMemory = Runtime.getRuntime().totalMemory();
long freeMemory = Runtime.getRuntime().freeMemory();
long usageMemory = totalMemory - freeMemory;
System.out.println("Total Memory : " + totalMemory);
System.out.println("Free Memory : " + freeMemory);
System.out.println("Usage Memory : " + usageMemory);
}
}
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Output :
Total Memory : 5177344
Free Memory : 4978792
Usage Memory : 198552
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