java - How to get current thread/object memory usage in jsp? -

java - How to get current thread/object memory usage in jsp? -

i seek memory usage linkedlist, homecoming 0.

<% runtime runtime = runtime.getruntime(); java.text.decimalformat df = new java.text.decimalformat("###,###.##"); long start = runtime.freememory(); java.util.linkedlist list = new java.util.linkedlist(); (int = 0; < 100; i++) list.add("asd"); system.out.println(df.format(start - runtime.freememory())); %>

is there anyway improve way memory usage thread or object?

java jsp memory