Example usage for java.text DecimalFormat format

List of usage examples for java.text DecimalFormat format

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Introduction

In this page you can find the example usage for java.text DecimalFormat format.

Prototype

public final String format(double number)

Source Link

Document

Specialization of format.

Usage

From source file:Main.java

public static String converSizeToString(long size) {
    String ext[] = { "B", "KB", "MB", "G", "T", "P" };
    int i = 0;//  w w w .  j a v a  2 s .  c  om
    long duration = size;
    while (duration >= 1024) {
        System.out.println("duration=" + duration + "  i=" + i);
        duration = duration >> 10;
        i++;
        System.out.println("duration=" + duration + "  i=" + i);
    }
    double d = Math.pow(2, 10 * (i));
    java.text.DecimalFormat df = new DecimalFormat();
    df.setMaximumFractionDigits(2);
    df.setMinimumFractionDigits(2);
    return df.format(size / d) + ext[i];
}

From source file:Main.java

public static String getFileSize(long size) {
    if (size <= 0) {
        return "0";
    }/*from   w  w  w.j  a  va2  s  . c  om*/
    java.text.DecimalFormat df = new DecimalFormat("##.##");
    float temp = (float) size / 1024;
    if (temp >= 1024) {
        return df.format(temp / 1024) + "M";
    } else {
        return df.format(temp) + "K";
    }
}

From source file:Main.java

public static String formatFileSizeToString(long fileLen) {
    DecimalFormat df = new DecimalFormat("0.00");
    String fileSizeString = "";
    if (fileLen < 1024) {
        fileSizeString = df.format((double) fileLen) + "B";
    } else if (fileLen < 1048576) {
        fileSizeString = df.format((double) fileLen / 1024) + "K";
    } else if (fileLen < 1073741824) {
        fileSizeString = df.format((double) fileLen / 1048576) + "M";
    } else {/* w  w w.j a  va 2s  .  com*/
        fileSizeString = df.format((double) fileLen / 1073741824) + "G";
    }
    return fileSizeString;
}

From source file:Main.java

/**
 * Convert filesize unit//w  ww.j a va2 s.  c  om
 * 
 * @param size
 * @return
 */
public static String formetFileSize(long size) {
    DecimalFormat df = new DecimalFormat("#0.00");
    String fileSizeString = "";
    if (size < 1024) {
        fileSizeString = df.format((double) size) + "B";
    } else if (size < 1048576) {
        fileSizeString = df.format((double) size / 1024) + "K";
    } else if (size < 1073741824) {
        fileSizeString = df.format((double) size / 1048576) + "M";
    } else {
        fileSizeString = df.format((double) size / 1073741824) + "G";
    }
    return fileSizeString;
}

From source file:Main.java

public static String getFileSize(long size) {
    if (size <= 0)
        return "0";
    java.text.DecimalFormat df = new java.text.DecimalFormat("##.##");
    float temp = (float) size / 1024;
    if (temp >= 1024) {
        return df.format(temp / 1024) + "M";
    } else {//from  w w w.  j  a  v  a2  s . com
        return df.format(temp) + "K";
    }
}

From source file:Main.java

public static String getCurrentTime() {
    DecimalFormat df = new DecimalFormat("00");
    Calendar c = Calendar.getInstance();
    String currentTime = c.get(Calendar.YEAR)// + "-"
            + df.format((c.get(Calendar.MONTH) + 1)) // + "-"
            + df.format(c.get(Calendar.DAY_OF_MONTH))// + "-"
            + df.format(c.get(Calendar.HOUR_OF_DAY)) // + "-"
            + df.format(c.get(Calendar.MINUTE))// + "-"
            + df.format(c.get(Calendar.SECOND));
    return currentTime;
}

From source file:com.carlomicieli.jtrains.value.objects.Length.java

private static double round(double v) {
    DecimalFormat df = new DecimalFormat("#.##");
    return Double.valueOf(df.format(v));
}

From source file:Main.java

public static String convertByte(long size) {
    DecimalFormat df = new DecimalFormat("###.##");
    float f;/*from  w w  w  .  j  a  v  a2 s . c o m*/
    if (size < 1024 * 1024) {
        f = (float) ((float) size / (float) 1024);
        return (df.format(new Float(f).doubleValue()) + "KB");
    } else {
        f = (float) ((float) size / (float) (1024 * 1024));
        return (df.format(new Float(f).doubleValue()) + "MB");
    }
}

From source file:Main.java

public static String formatFileSize(long fileS) {
    java.text.DecimalFormat df = new java.text.DecimalFormat("#.00");
    String fileSizeString = "";
    if (fileS < 1024) {
        fileSizeString = df.format((double) fileS) + "B";
    } else if (fileS < 1048576) {
        fileSizeString = df.format((double) fileS / 1024) + "KB";
    } else if (fileS < 1073741824) {
        fileSizeString = df.format((double) fileS / 1048576) + "MB";
    } else {//from   w  w  w .  j  a v a2 s  . co  m
        fileSizeString = df.format((double) fileS / 1073741824) + "G";
    }
    return fileSizeString;
}

From source file:Main.java

public static String formatFileSize(long fileS) {
    String fileSizeString = "";
    if (fileS <= 0) {
        return "0 KB";
    }/*from ww  w  .  j  a va2  s.c o  m*/
    if (fileS < 1024) {
        fileSizeString = "1 KB";
    } else if (fileS < 1048576) {
        long inte = fileS / 1024;
        if (inte > 100) {
            DecimalFormat df = new DecimalFormat("##0");
            fileSizeString = df.format(Rounding((double) fileS / 1024)) + " KB";
        } else if (inte > 10) {
            DecimalFormat df = new DecimalFormat("##0.0");
            fileSizeString = df.format(Rounding((double) fileS / 1024)) + " KB";
        } else {
            DecimalFormat df = new DecimalFormat("##0.00");
            fileSizeString = df.format(Rounding((double) fileS / 1024)) + " KB";
        }
    } else if (fileS < 1073741824) {
        long inte = fileS / 1048576;
        if (inte > 100) {
            DecimalFormat df = new DecimalFormat("##0");
            fileSizeString = df.format(Rounding((double) fileS / 1048576)) + " MB";
        } else if (inte > 10) {
            DecimalFormat df = new DecimalFormat("##0.0");
            fileSizeString = df.format(Rounding((double) fileS / 1048576)) + " MB";
        } else {
            DecimalFormat df = new DecimalFormat("##0.00");
            fileSizeString = df.format(Rounding((double) fileS / 1048576)) + " MB";
        }
    } else if (fileS < 1099511627776L) {
        long inte = fileS / 1073741824;
        if (inte > 100) {
            DecimalFormat df = new DecimalFormat("##0");
            fileSizeString = df.format(Rounding((double) fileS / 1073741824)) + " GB";
        } else if (inte > 10) {
            DecimalFormat df = new DecimalFormat("##0.0");
            fileSizeString = df.format(Rounding((double) fileS / 1073741824)) + " GB";
        } else {
            DecimalFormat df = new DecimalFormat("##0.0");
            fileSizeString = df.format(Rounding((double) fileS / 1073741824)) + " GB";
        }
    } else {
        long inte = fileS / 1099511627776L;
        if (inte > 100) {
            DecimalFormat df = new DecimalFormat("##0");
            fileSizeString = df.format((double) fileS / 1099511627776L) + " TB";
        } else if (inte > 10) {
            DecimalFormat df = new DecimalFormat("##0.0");
            fileSizeString = df.format((double) fileS / 1099511627776L) + " TB";
        } else {
            DecimalFormat df = new DecimalFormat("##0.00");
            fileSizeString = df.format((double) fileS / 1099511627776L) + " TB";
        }
    }
    return fileSizeString;
}