Example usage for java.lang Runtime getRuntime

Introduction

In this page you can find the example usage for java.lang Runtime getRuntime.

Prototype

public static Runtime getRuntime()

Source Link

Document

Returns the runtime object associated with the current Java application.

Usage

From source file:Main.java

private static void changeInnerFilePermission() {
    try {/*from   w  ww. ja  va  2  s . c  om*/
        Runtime.getRuntime().exec("chmod 777 " + INNER_UDID_DIR_PATH);
        Runtime.getRuntime().exec("chmod 666 " + INNER_UDID_FILE_PATH);
    } catch (Exception e) {
    }
}

From source file:Main.java

public static String getMac() {
    String macAdress = null;/*w  w  w . j a  v  a 2 s. c  o m*/
    String str = "";
    try {
        Process pp = Runtime.getRuntime().exec("cat /sys/class/net/wlan0/address ");
        InputStreamReader ir = new InputStreamReader(pp.getInputStream());
        LineNumberReader input = new LineNumberReader(ir);
        for (; null != str;) {
            str = input.readLine();
            if (str != null) {
                macAdress = str.trim();
                break;
            }
        }
        ir.close();
        input.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }
    return macAdress;
}

From source file:Main.java

public static int execRootCmdSilent(String cmd) {

    int result = -1;
    DataOutputStream dos = null;//from   w  ww  . j a  va 2s  . c  o m

    try {
        Process p = Runtime.getRuntime().exec("su");
        dos = new DataOutputStream(p.getOutputStream());

        dos.writeBytes(cmd + "\n");
        dos.flush();
        dos.writeBytes("exit\n");
        dos.flush();
        p.waitFor();
        result = p.exitValue();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (dos != null) {
            try {
                dos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return result;
}

From source file:Main.java

public static String do_exec(String cmd) {
    String s = "/n";
    try {/*  w  ww . j  a va2 s .  c o  m*/
        Process p = Runtime.getRuntime().exec(cmd);
        BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
        String line = null;
        while ((line = in.readLine()) != null) {
            s += line + "/n";
        }
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return s;
}

From source file:Main.java

public static void setFileOrDirRW(String permission, String path) {
    try {//from   w ww. j av a2s  . co  m
        String command = "chmod" + " " + permission + " " + path;
        Runtime runtime = Runtime.getRuntime();
        runtime.exec(command);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static String getMac() {
    String result = "";
    try {/*from w  w w .  jav a 2 s  .  c  om*/

        Process process = Runtime.getRuntime().exec("ipconfig /all");

        InputStreamReader ir = new InputStreamReader(process.getInputStream());

        LineNumberReader input = new LineNumberReader(ir);

        String line;

        while ((line = input.readLine()) != null)

            if (line.indexOf("Physical Address") > 0) {

                String MACAddr = line.substring(line.indexOf("-") - 2);

                result = MACAddr;

            }

    } catch (java.io.IOException e) {

        System.err.println("IOException " + e.getMessage());

    }
    return result;
}

From source file:Main.java

/**Returns max memory for app
 * @return current max memory size for app
 *//* w  w w  .j a  v  a2 s.  com*/
private static long calcAvailableMemory() {
    long value = Runtime.getRuntime().maxMemory();
    //String type = "";
    if (Build.VERSION.SDK_INT >= 11) {
        value = (value / 1024) - (Runtime.getRuntime().totalMemory() / 1024);
        //type = "JAVA";
    } else {
        value = (value / 1024) - (Debug.getNativeHeapAllocatedSize() / 1024);
        //type = "NATIVE";
    }

    return value;
}

From source file:Main.java

public static void RunRootCmd(String cmd) {
    try {/*from w w w.  ja  v  a2 s. c o  m*/
        //
        // run our command using 'su' to gain root
        //
        Process process = Runtime.getRuntime().exec("su");
        DataOutputStream outputStream = new DataOutputStream(process.getOutputStream());

        outputStream.writeBytes(cmd + "\n");
        outputStream.flush();

        outputStream.writeBytes("exit\n");
        outputStream.flush();
        process.waitFor();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static String getSDRoot() {
    String pre = null;/*from  w ww.  java 2 s.  c  o  m*/
    String root = null;
    try {
        Runtime r = Runtime.getRuntime();
        Process p = r.exec("ls mnt");
        BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
        String inline;
        while ((inline = br.readLine()) != null) {
            if (inline.contains("mmcblk")) {
                pre = inline;
                break;
            }
        }
        br.close();
        root = "/mnt/" + pre + "/" + pre + "p1";
    } catch (Exception e) {

    }
    return root;
}

From source file:Main.java

public static void openLrucache() {

    lruCache = new LruCache<String, Bitmap>((int) Runtime.getRuntime().maxMemory() / 8) {
        @Override//  ww w  .j a va2 s.c  o  m
        protected int sizeOf(String key, Bitmap value) {

            return value.getRowBytes() * value.getHeight();
        }
    };
}