In Java programming, theIntegerclass is used to wrap a value of the primitive typeintin an object. In Java 8, theIntegerclass introduced a useful method calledrange, which creates a sequential range of integers. UsingrangeMethod Therangemethod in theIntegerclass allows you to create a range o...
This method will always cache values in the range -128 to 127, inclusive, and may cache other values outside of this range. 此⽅法将始终缓存-128到127（包括端点）范围内的值，并可以缓存此范围之外的其他值 缓存设计 valueOf ⽅法中 IntegerCache.low = -128； IntegerCache.high = 127 ; 也就...
* the constructor {@link #Integer(int)}, as this method is likely * to yield significantly better space and time performance by * caching frequently requested values. * * This method will always cache values in the range -128 to 127, * inclusive, and may cache other values outside of t...
在Java中,The following is the list of primitives stored as immutable objects(不可变对象): * boolean values true and false * All byte values * short values between -128 and 127 * int values between -128 and 127 * char in the range \u0000 to \u007F 为了更容易理解问题,用Jad将上面代码...
Integer只有一个非静态字段value,用来表示其包装的int值。0x80000000和0x7fffffff分别是 int 最小值和最大值的十六进制表示,这里要注意十六进制 int 值在内存中的表示方法,有兴趣的同学可以了解一下,这里先占个坑,有时间单独写[一篇文章]()。 我们都知道int是 4 字节,32 比特,和 C/C++ 不同的时,Java中整型...
* This method will always cache values in the range -128 to 127, * inclusive, and may cache other values outside of this range. * * @param i an {@code int} value. * @return an {@code Integer} instance representing {@code i}. ...
This method will always cache values in the range -128 to 127, inclusive, and may cache other values outside of this range. Parameters: i - an int value. Returns: an Integer instance representing i. Since: 1.5 byteValue public byte byteValue() Returns the value of this Integer as a ...
This method will always cache values in the range -128 to 127, inclusive, and may cache other values outside of this range. @param i an {@code int} value. @return an {@code Integer} instance representing {@code i}. @since 1.5 ...
For n = 1, since int1 is unsigned char, all the whole 8 bit of 1 byte could be used to represent the numeric value, so the range should then be: The constant range of int4 and int8 are defined in class CL_ABAP_MATH: while int1 and int2 are defined in another class CL_ABAP_...
/*** This method will always cache values in the range -128 to 127,* inclusive, and may cache other values outside of this range.** @param i an {@code int} value.* @return an {@code Integer} instance representing {@code i}.* @since 1.5*/publicstaticIntegervalueOf(inti){if(i>...