本文整理了Java中java.lang.Number.floatValue()方法的一些代码示例，展示了Number.floatValue()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Number.floatValue()方法的具体详情如下：
包路径：java.lang.Number
类名称：Number
方法名：floatValue

Number.floatValue介绍

[英]Returns this object's value as a float. Might involve rounding.
[中]以浮点形式返回此对象的值。可能需要四舍五入。

代码示例

代码示例来源：origin: apache/incubator-dubbo

@Override
  public Object decode(Object jv) {
    if (jv instanceof Number) {
      return ((Number) jv).floatValue();
    }
    return (float) 0;
  }
};

代码示例来源：origin: apache/incubator-dubbo

@Override
  public Object decode(Object jv) {
    if (jv instanceof Number) {
      return ((Number) jv).floatValue();
    }
    return (float) 0;
  }
};

代码示例来源：origin: alibaba/druid

public static Float castToFloat(Object val) {
  if (val == null || val == EVAL_VALUE_NULL) {
    return null;
  }
  if (val instanceof Float) {
    return (Float) val;
  }
  return ((Number) val).floatValue();
}

代码示例来源：origin: apache/incubator-dubbo

/**
 * get float value.
 *
 * @param index index.
 * @param def   default value.
 * @return value or default value.
 */
public float getFloat(int index, float def) {
  Object tmp = mArray.get(index);
  return tmp != null && tmp instanceof Number ? ((Number) tmp).floatValue() : def;
}

代码示例来源：origin: apache/incubator-dubbo

@Override
  public Object decode(Object jv) {
    if (jv instanceof Number) {
      return new Float(((Number) jv).floatValue());
    }
    return (Float) null;
  }
};

代码示例来源：origin: apache/incubator-dubbo

/**
 * get float value.
 *
 * @param key key.
 * @param def default value.
 * @return value or default value.
 */
public float getFloat(String key, float def) {
  Object tmp = mMap.get(key);
  return tmp != null && tmp instanceof Number ? ((Number) tmp).floatValue() : def;
}

代码示例来源：origin: apache/incubator-dubbo

/**
 * get float value.
 *
 * @param index index.
 * @param def   default value.
 * @return value or default value.
 */
public float getFloat(int index, float def) {
  Object tmp = mArray.get(index);
  return tmp != null && tmp instanceof Number ? ((Number) tmp).floatValue() : def;
}

代码示例来源：origin: apache/incubator-dubbo

/**
 * get float value.
 *
 * @param key key.
 * @param def default value.
 * @return value or default value.
 */
public float getFloat(String key, float def) {
  Object tmp = mMap.get(key);
  return tmp != null && tmp instanceof Number ? ((Number) tmp).floatValue() : def;
}

代码示例来源：origin: apache/incubator-dubbo

@Override
  public Object decode(Object jv) {
    if (jv instanceof Number) {
      return new Float(((Number) jv).floatValue());
    }
    return (Float) null;
  }
};

代码示例来源：origin: apache/incubator-dubbo

@Override
  public void encode(Object obj, JSONWriter jb) throws IOException {
    jb.valueFloat(((Number) obj).floatValue());
  }
};

代码示例来源：origin: apache/incubator-dubbo

@Override
  public void encode(Object obj, JSONWriter jb) throws IOException {
    jb.valueFloat(((Number) obj).floatValue());
  }
};

代码示例来源：origin: alibaba/druid

@Override
public float getFloat(int columnIndex) throws SQLException {
  Number number = (Number) getObject(columnIndex);
  if (number == null) {
    return 0;
  }
  return number.floatValue();
}

代码示例来源：origin: alibaba/druid

@Override
public float getFloat(int columnIndex) throws SQLException {
  Number number = (Number) getObject(columnIndex);
  if (number == null) {
    return 0;
  }
  return number.floatValue();
}

代码示例来源：origin: spring-projects/spring-framework

@Override
  public Float convert(String source) {
    try {
      NumberFormat nf = NumberFormat.getInstance(Locale.GERMAN);
      return nf.parse(source).floatValue();
    }
    catch (ParseException ex) {
      throw new IllegalArgumentException(ex);
    }
  }
});

代码示例来源：origin: alibaba/druid

@Override
public void setNumber(Number number) {
  if (number == null) {
    this.setValue(null);
    return;
  }
  this.setValue(number.floatValue());
}

代码示例来源：origin: alibaba/druid

@Override
public void setNumber(Number number) {
  if (number == null) {
    this.setValue(null);
    return;
  }
  this.setValue(number.floatValue());
}

代码示例来源：origin: apache/incubator-dubbo

public float getParameter(String key, float defaultValue) {
  Number n = getNumbers().get(key);
  if (n != null) {
    return n.floatValue();
  }
  String value = getParameter(key);
  if (StringUtils.isEmpty(value)) {
    return defaultValue;
  }
  float f = Float.parseFloat(value);
  getNumbers().put(key, f);
  return f;
}

代码示例来源：origin: apache/incubator-dubbo

public float getParameter(String key, float defaultValue) {
  Number n = getNumbers().get(key);
  if (n != null) {
    return n.floatValue();
  }
  String value = getParameter(key);
  if (StringUtils.isEmpty(value)) {
    return defaultValue;
  }
  float f = Float.parseFloat(value);
  getNumbers().put(key, f);
  return f;
}

代码示例来源：origin: apache/incubator-dubbo

public float getMethodParameter(String method, String key, float defaultValue) {
  String methodKey = method + "." + key;
  Number n = getNumbers().get(methodKey);
  if (n != null) {
    return n.floatValue();
  }
  String value = getMethodParameter(method, key);
  if (StringUtils.isEmpty(value)) {
    return defaultValue;
  }
  float f = Float.parseFloat(value);
  getNumbers().put(methodKey, f);
  return f;
}

代码示例来源：origin: apache/incubator-dubbo

public float getMethodParameter(String method, String key, float defaultValue) {
  String methodKey = method + "." + key;
  Number n = getNumbers().get(methodKey);
  if (n != null) {
    return n.floatValue();
  }
  String value = getMethodParameter(method, key);
  if (StringUtils.isEmpty(value)) {
    return defaultValue;
  }
  float f = Float.parseFloat(value);
  getNumbers().put(methodKey, f);
  return f;
}