How to Compare Integer Values in Java Lesson Transcript Instructor Martin Gibbs Martin has 22 years experience in Information Systems and Information Technology, has a PhD in Information Technology Management,
}/** * Compares two {@code int} values numerically. * The value returned is identical to what would be returned by: * * Integer.valueOf(x).compareTo(Integer.valueOf(y)) * * * @param x the first {@code int} to compare * @param y the second {@code int} to compare * @ret...
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 ; 也就是...
1、以上代码第一段和第二段旨在说明:在-128~127的Integer值并且以Integer x = value;的方式赋值的Integer值在进行==和equals比较时,都会返回true,因为Java里面对处在在-128~127之间的Integer值,用的是原生数据类型int,会在内存里供重用,也就是说这之间的Integer值进行==比较时只是进行int原生数据类型的数值比较,...
used in preference to the constructor 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 this ...
/*** 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>...
首先,我们需要在Java代码中导入相关的类。在本例中,我们需要导入java.lang.Integer类。 importjava.lang.Integer; 1. 步骤2:使用new关键字创建一个Integer对象 接下来,我们可以使用new关键字创建一个Integer对象。new关键字用于实例化一个类,并返回一个对应的对象。
* 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}. ...
* caching frequently requested values. * * 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. * * @param i an {@code int} value. * @return an {@code Integer} instance representing {@code i}. ...