However,we can append the suffixF(or f) to designate the data typeasfloat. 双倍的: double 数据类型是双精度 64 位IEEE 754 浮点。此数据类型通常是默认选择。此数据类型绝不应用于精确值,例如货币。 Wrapper Class: Double This data typeisgenerally usedasthedefaultdata typefordecimalvalues. Defaultvalue...
Integer literals may be expressed in decimal, hexadecimal, octal, or binary notations. If a number has an ASCII letterLorlsuffix, it is of typelong. Otherwise it is of typeint. The capital letter L is preferred for specifying long numbers, since lowercase l can be easily confused with numbe...
double Stores fractional numbers. Sufficient for storing 15 to 16 decimal digits boolean Stores true or false values char Stores a single character/letter or ASCII valuesExercise? What is an int in Java? A data type representing integers. A data type representing strings. A data type representing...
The byte, short, int, and long are all signed data types. For a signed data type, half of the range of values stores positive number and half for negative numbers, as one bit is used to store the sign of the value. For example, a byte takes 8 bits; its range is -128 to 127. ...
The following table lists the default values for Java's primitive data types shown in Table 1. Table 2: Default values of primitive data types in Java TypeDefault Value byte 0 short 0 int 0 long 0 float 0.0f double 0.0d char '\u0000' boolean false String or other object null...
isCellDateFormatted(hssfCell)) cellValue = formater.format(hssfCell.getDateCellValue()); else cellValue = decimalFormatter.format(hssfCell.getNumericCellValue()); break; case HSSFCell.CELL_TYPE_STRING : cellValue = hssfCell.getStringCellValue().trim(); break; case HSSFCell.CELL_TYPE_FORMULA ...
public static final intXML_TYPE_CATEGORY A constant that represents the XML type category of data types. See Also: Constant Field Values ANY_CATEGORY public static final intANY_CATEGORY A constant that represents a category for any data type. ...
staticValues - The static values of the DecimalDefaultValues. Returns: Returns a reference to this object so that method calls can be chained together. toString public String toString() Returns a string representation of this object. This is useful for testing and debugging. Sensitive data wil...
public static final byte DECIMAL_DIGIT_NUMBER 9 public static final byte DIRECTIONALITY_ARABIC_NUMBER 6 public static final byte DIRECTIONALITY_BOUNDARY_NEUTRAL 9 public static final byte DIRECTIONALITY_COMMON_NUMBER_SEPARATOR 7 public static final byte DIRECTIONALITY_EUROPEAN_NUMBER 3 public static final ...
Variables are nothing but reserved memory locations to store values. This means that when you create a variable you reserve some space in the memory.---说的好有道理 Based on the data type of a variable, the operating system allocates memory and decides what can be stored in the reserved ...