get Cpu Frequency - Android Hardware

Android examples for Hardware:CPU Frequency

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  4. CPU Frequency

Description

get Cpu Frequency

Demo Code


//package com.java2s;
import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;

public class Main {
    public static String getCpuFre() {
        String cpuFreFile = "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq";
        return ((Long) readLong(cpuFreFile)).toString();
    }/*ww  w. ja va  2 s .  c  o  m*/

    private static long readLong(String file) {
        RandomAccessFile raf = null;

        try {
            raf = getFile(file);
            return Long.valueOf(raf.readLine());
        } catch (Exception e) {
            return 0;
        } finally {
            if (raf != null) {
                try {
                    raf.close();
                } catch (IOException e) {
                }
            }
        }
    }

    private static RandomAccessFile getFile(String filename)
            throws IOException {
        File f = new File(filename);
        return new RandomAccessFile(f, "r");
    }
}

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