Get cpu current frequency, Unit KHZ. - Android Hardware

Android examples for Hardware:CPU Frequency

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Description

Get cpu current frequency, Unit KHZ.

Demo Code

/*//w ww.  ja va 2 s. c  o m
 * Copyright (C) 2016 venshine.cn@gmail.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
//package com.java2s;
import java.io.BufferedReader;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class Main {
    /**
     * Get cpu current frequency, Unit KHZ.
     *
     * @return
     */
    @SuppressWarnings("resource")
    public static String getCpuCurFreq() {
        String result = "N/A";
        try {
            FileReader fr = new FileReader(
                    "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq");
            BufferedReader br = new BufferedReader(fr);
            String text = br.readLine();
            result = text.trim();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }
}

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