Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.util.Log;
import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class Main {
    public static int getCpuUsageStatisticINT() {
        int itemp = 0;
        int[] intsTemp = getCpuUsageStatistic();
        for (int i = 0; i < intsTemp.length; i++) {
            itemp += intsTemp[i];
        }
        return itemp;
    }

    public static int[] getCpuUsageStatistic() {

        String tempString = executeTop();

        tempString = tempString.replaceAll(",", "");
        tempString = tempString.replaceAll("User", "");
        tempString = tempString.replaceAll("System", "");
        tempString = tempString.replaceAll("IOW", "");
        tempString = tempString.replaceAll("IRQ", "");
        tempString = tempString.replaceAll("%", "");
        for (int i = 0; i < 10; i++) {
            tempString = tempString.replaceAll("  ", " ");
        }
        tempString = tempString.trim();
        String[] myString = tempString.split(" ");
        int[] cpuUsageAsInt = new int[myString.length];
        for (int i = 0; i < myString.length; i++) {
            myString[i] = myString[i].trim();
            cpuUsageAsInt[i] = Integer.parseInt(myString[i]);
        }
        return cpuUsageAsInt;
    }

    private static String executeTop() {
        Process p = null;
        BufferedReader in = null;
        String returnString = null;
        try {
            p = Runtime.getRuntime().exec("top -n 1");
            in = new BufferedReader(new InputStreamReader(p.getInputStream()));
            while (returnString == null || returnString.contentEquals("")) {
                returnString = in.readLine();
            }
        } catch (IOException e) {
            Log.e("executeTop", "error in getting first line of top");
            e.printStackTrace();
        } finally {
            try {
                in.close();
                p.destroy();
            } catch (IOException e) {
                Log.e("executeTop", "error in closing and destroying top process");
                e.printStackTrace();
            }
        }
        return returnString;
    }
}