javaϵͳ¼à¿ØCPU ´ÅÅÌ
import java.io.*;
/**
* linux ÏÂcpu ÄÚ´æ ´ÅÅÌ jvmµÄʹÓÃ¼à¿Ø
* @author avery_leo
*
*/
public class TT {
/**
* »ñÈ¡cpuʹÓÃÇé¿ö
* @return
* @throws Exception
*/
public double getCpuUsage() throws Exception {
double cpuUsed = 0;
Runtime rt = Runtime.getRuntime();
Process p = rt.exec("top -b -n 1");// µ÷ÓÃϵͳµÄ“top"ÃüÁî
BufferedReader in = null;
try {
in = new BufferedReader(new InputStreamReader(p.getInputStream()));
String str = null;
String[] strArray = null;
while ((str = in.readLine()) != null) {
int m = 0;
if (str.indexOf(" R ") != -1) {// Ö»·ÖÎöÕýÔÚÔËÐеĽø³Ì£¬top½ø³Ì±¾Éí³ýÍâ &&am
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int b = 2;
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int c = -14;
int d = 2;
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