Example usage for java.lang Float parseFloat

Introduction

In this page you can find the example usage for java.lang Float parseFloat.

Prototype

public static float parseFloat(String s) throws NumberFormatException

Source Link

Document

Returns a new float initialized to the value represented by the specified String , as performed by the valueOf method of class Float .

Usage

From source file:Main.java

public static float getLineSpacing(SharedPreferences preferences, String key, String defaultValue) {
    return Float.parseFloat(preferences.getString(key, defaultValue));
}

From source file:Main.java

/**
 * Convert float value wraped in string to float safely.
 *//*from   ww w. jav  a  2s .c  o  m*/
public static float toFloatSafely(String text) {
    float result = -1.0f;

    text = text.trim();
    try {
        result = Float.parseFloat(text);
    } catch (NumberFormatException e) {
        e.printStackTrace();
    }

    return result;
}

From source file:Main.java

public static final float getFloatAttribute(final Attributes pAttributes, final String pAttributeName,
        final float pDefaultValue) {
    final String value = pAttributes.getValue("", pAttributeName);
    return (value != null) ? Float.parseFloat(value) : pDefaultValue;
}

From source file:Main.java

public static String getSeperateAmount(double amount) {
    String double_format = "%1$.2f";
    String total = String.format(double_format, amount);
    // return String.format(format,
    // "" +/* w  w w  .  jav  a  2  s . c  o m*/
    return addSeparateSign((int) Float.parseFloat(total));
}

From source file:Main.java

public static Float convertToFloat(String fStr) {
    try {//from  w w  w.  ja v  a  2s  .  c  o m
        return Float.parseFloat(fStr);
    } catch (NumberFormatException e) {
    }
    return null;
}

From source file:Main.java

public static float getTagValueAsFloat(Document document, String tagName) {
    float tagValue = -1.0f;

    String tempVal = getTagValueAsString(document, tagName);
    tagValue = Float.parseFloat(tempVal);

    return tagValue;
}

From source file:Main.java

public static float floatAttr(final XmlPullParser pp, final String attrName) {
    return Float.parseFloat(pp.getAttributeValue(null, attrName).trim());
}

From source file:Main.java

/**
 * Check number.//from w w w . java 2s  . c om
 * 
 * @param value
 *            the value
 * @return true, if successful
 */
public static boolean checkNumber(String value) {
    try {
        if (value == null || value.length() == 0) {
            return false;
        }
        Float.parseFloat(value);
    } catch (NumberFormatException nfe) {
        return false;
    }
    return true;
}

From source file:Main.java

public static float getFloatProperty(Properties properties, String key, float defaultValue) {
    if (properties != null) {
        String value = properties.getProperty(key, "").trim();

        if (!value.equals("")) {
            try {
                return Float.parseFloat(value);
            } catch (NumberFormatException var5) {
                ;/* w  ww .j av  a  2s  .  c om*/
            }
        }
    }

    return defaultValue;
}

From source file:Main.java

static final Float convertUnits(String name, XmlPullParser atts, float dpi, float width, float height) {
    String value = getStringAttr(name, atts);
    if (value == null) {
        return null;
    } else if (value.endsWith("px")) {
        return Float.parseFloat(value.substring(0, value.length() - 2));
    } else if (value.endsWith("pt")) {
        return Float.valueOf(value.substring(0, value.length() - 2)) * dpi / 72;
    } else if (value.endsWith("pc")) {
        return Float.valueOf(value.substring(0, value.length() - 2)) * dpi / 6;
    } else if (value.endsWith("cm")) {
        return Float.valueOf(value.substring(0, value.length() - 2)) * dpi / 2.54f;
    } else if (value.endsWith("mm")) {
        return Float.valueOf(value.substring(0, value.length() - 2)) * dpi / 254;
    } else if (value.endsWith("in")) {
        return Float.valueOf(value.substring(0, value.length() - 2)) * dpi;
    } else if (value.endsWith("%")) {
        Float result = Float.valueOf(value.substring(0, value.length() - 1));
        float mult;
        if (name.contains("x") || name.equals("width")) {
            mult = width / 100f;// www.  jav a  2 s.  c  o  m
        } else if (name.contains("y") || name.equals("height")) {
            mult = height / 100f;
        } else {
            mult = (height + width) / 2f;
        }
        return result * mult;
    } else {
        return Float.valueOf(value);
    }
}