前段时间曾经写过一篇文章,《优秀程序员无他-善假于物也》。其中谈到一点是优秀的程序员必须要能灵活的掌握常用软件的快捷键。对于程序员来说,每天使用时间最长的软件恐怕就是IDE(Integrated Development Environment)了。如果你…
Hashtable类hashCode()方法 (Hashtable Class hashCode() method) hashCode() method is available in java.util package. hashCode()方法在java.util包中可用。 hashCode() method is used to return the hash code value for this object in this Hashtable. hashCode()方法…
float.equals浮动类equals()方法 (Float class equals() method) equals() method is available in java.lang package. equals()方法在java.lang包中可用。 equals() method is used to check equality or inequality of this Object against the given Object or in other wo…
java bitsetBitSet类cardinality()方法 (BitSet Class cardinality() method) cardinality() method is available in java.util package. cardinality()方法在java.util包中可用。 cardinality() method is used to return the cardinality (i.e. the number of bits is set t…