Class BigDecimal

java.lang.Object
com.codename1.util.BigDecimal
public class BigDecimal extends Object
Class representing a simple version of a big decimal. A BigDecimal is basically a BigInteger with a few digits on the right of the decimal point. The number of (binary) digits on the right of the decimal point is called the scale of the BigDecimal. Unlike in BigDecimal, the scale is not adjusted automatically, but must be set manually. All BigDecimals taking part in the same arithmetic operation must have equal scale. The result of a multiplication of two BigDecimals returns a BigDecimal with double scale.

  • Constructor Details

    • BigDecimal

      public BigDecimal(BigInteger bigInt, int scale)

      Constructor for BigDecimal. The value of the constructed BigDecimal equals bigInt / 10scale.

      Parameters

      • bigInt: The bigInt value parameter.

      • scale: The scale of the constructed BigDecimal.

  • Method Details

    • getInstance

      public static BigDecimal getInstance(BigInteger value, int scale)

      Returns a BigDecimal with value value / 2scale / 10scale

      Parameters

      • value: @param value The value of the BigDecimal to be created.

      • scale: @param scale The scale of the BigDecimal to be created.

      Returns

      The such created BigDecimal.

      Deprecated

    • adjustScale

      public BigDecimal adjustScale(int newScale)

    • add

      public BigDecimal add(BigDecimal b)

    • add

      public BigDecimal add(BigInteger b)

    • negate

      public BigDecimal negate()

    • subtract

      public BigDecimal subtract(BigDecimal b)

    • subtract

      public BigDecimal subtract(BigInteger b)

    • multiply

      public BigDecimal multiply(BigDecimal b)

    • multiply

      public BigDecimal multiply(BigInteger b)

    • divide

      public BigDecimal divide(BigDecimal b)

    • divide

      public BigDecimal divide(BigInteger b)

    • shiftLeft

      public BigDecimal shiftLeft(int n)

    • compareTo

      public int compareTo(BigDecimal val)

    • compareTo

      public int compareTo(BigInteger val)

    • floor

      public BigInteger floor()

    • round

      public BigInteger round()

    • intValue

      public int intValue()

    • longValue

      public long longValue()

    • getScale

      public int getScale()

    • toString

      public String toString()
      Description copied from class: Object
      Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method. The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of: getClass().getName() + '@' + Integer.toHexString(hashCode())
      Overrides:
      toString in class Object

    • equals

      public boolean equals(Object o)
      Description copied from class: Object
      Indicates whether some other object is "equal to" this one. The equals method implements an equivalence relation: It is reflexive: for any reference value x, x.equals(x) should return true. It is symmetric: for any reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true. It is transitive: for any reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true. It is consistent: for any reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the object is modified. For any non-null reference value x, x.equals(null) should return false. The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any reference values x and y, this method returns true if and only if x and y refer to the same object (x==y has the value true).
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Description copied from class: Object
      Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable. The general contract of hashCode is: Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables. As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)
      Overrides:
      hashCode in class Object