*@seejava.util.HashMap */publicbooleanequals(Object obj){return(this== obj); }/** * Creates and returns a copy of this object. The precise meaning * of "copy" may depend on the class of the object. The general * intent is that, for any object {@codex}, the expression: * <bloc...
Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one executio...
{@linkjava.lang.Object#notifyAll()} methodforthisobject, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.@paramtimeout the maximum time to wait in milliseconds.@paramnanos additional time, in nanoseconds range0-999999.源码:publicfinalvoidwait(lon...
In other words, * waits should always occur in loops, like this one: * <pre> * synchronized (obj) { * while (<condition does not hold>) * obj.wait(timeout); * ... // Perform action appropriate to condition * } * </pre> * (For more information on this topic, see Section 3.2...
* an execution of a Java application, the {@code hashCode} method * must consistently return the same integer, provided no information * used in {@code equals} comparisons on the object is modified. * This integer need not remain consistent from one execution of an ...
源码注释:Createsandreturnsacopyofthisobject.Theprecisemeaningof"copy"maydependontheclassoftheobject.源码:protectednativeObjectclone()throwsCloneNotSupportedException; clone()方法用于克隆当前对象,克隆分为浅克隆和深克隆。Object类中的clone()方法是浅克隆对象。
A class should typically be recognizable to a non-programmer familiar with the problem domain, meaning that the characteristics of the class should make sense in context. Also, the code for a class should be relatively self-contained. Collectively, the properties and methods defined by a class ...
In Java, an object is created using the keyword “new”. Techopedia Explains Java Object Java objects are very similar to the objects we can observe in the real world. A cat, a lighter, a pen, or a car are all objects. They are characterized by three features: ...
Another backslash. The second backslash has no special meaning and the two characters represent a single backslash. The character 'n'. The two characters represent a newline ('\n' in Java). A quote. The two characters represent a quote, and that quote is not considered to terminate the qu...
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