*@param a an object* @param b an object to be compared with {@code a}forequality* @return{@codetrue}ifthe arguments are equal to each other* and {@codefalse} otherwise*@see Object#equals(Object)*/publicstaticbooleanequals(Object a, Object b) {return(a == b) || (a !=null&&a.e...
如果两个对象变量的name或hireDay都为null,则调用Objects.equals方法会返回true, 如果其中只有一个对象变量的name或hireDay为null,即Objects.equals(a, b)中只有一个为null,那直接返回false 如果两个对象变量的name或hireDay都不为null,即Objects.equals(a, b)中两个都不为null,这时根据return (a == b) || ...
/** * Compares this {@code BigDecimal} with the specified * {@code Object} for equality. Unlike {@link * #compareTo(BigDecimal) compareTo}, this method considers two * {@code BigDecimal} objects equal only if they are equal in * value and scale (thus 2.0 is not equal to 2.00 when ...
it is important to note that theequals()method performs a shallow comparison, meaning that it does not compare the elements recursively if they are objects.
其实javadoc里面就已经写的很明白:“ComparesthisBigDecimalwiththespecifiedObjectforequality.UnlikecompareTo,thismethodconsiderstwoBigDecimalobjectsequalonlyiftheyareequalinvalueandscale(thus2.0isnotequalto2.00whencomparedbythismethod).”只是自己没有去注意罢了! 再看一下compareTo方法: publicintcompareTo(BigDecimalval...
其实javadoc里面就已经写的很明白:“Compares this BigDecimal with the specified Object for equality. Unlike compareTo, this method considers two BigDecimal objects equal only if they are equal in value and scale (thus 2.0 is not equal to 2.00 when compared by this method).”只是自己没有去注意罢...
其实javadoc里面就已经写的很明白:“Compares this BigDecimal with the specified Object for equality. Unlike compareTo, this method considers two BigDecimal objects equal only if they are equal in value and scale (thus 2.0 is not equal to 2.00 when compared by this method).”只是自己没有去注意罢...
When compating objects for equality, we only want to compare the fields inChildVo. The fields inBaseVoshould not be compared. In the following example, theidfield belongs toBaseVoand its value will not be used inequals()comparison.
T- the type of the objects being compared Parameters: a- an object b- an object to be compared witha c- theComparatorto compare the first two arguments Returns: 0 if the arguments are identical andc.compare(a, b)otherwise. See Also: ...
Stream<T> sorted(Comparator<? super T> comparator); int compare(T o1, T o2); 代码语言:javascript 代码运行次数:0 运行 AI代码解释 List<Integer> list = Arrays.asList(12, 3, 4, 5, 4); list.stream() .sorted( (o1,o2) -> o1 > o2 ? 1 : (o1 < o2 ? -1 : 0 )) .forEach(...