Java中String类型具有一个equals的方法能够用于推断两种字符串是否相等,可是这样的相等又与运算符==所推断的“相等”有所不同,接下来进行分析,结论由程序进行验证 String的equals函数仅仅要两个字符串“看起来”相等,就能够返回true,“看起来”相等意思指的是,当两个字符串对象所存放的内容同样时,不须要存放的内存地...
Returns a string representing the data in this sequence. void trimToSize() Attempts to reduce storage used for the character sequence. Methods inherited from class java.lang.Object clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait Methods inherited from interface ...
JAVA异常是在java程序运行的时候遇到非正常的情况而创建的对,它封装了异常信息。java异常的根类为java.lang.Throwable,整个类有两个直接子类java.lang.Error和java.lang.Exception。 Error是程序本身无法恢复的严重错误,一般是虚拟机或者系统运行出现错误,和程序无关。Exception则表示可以被程序捕获并处理的异常错误。 JV...
public class TestClass implements Cloneable { private Long value; public Long getId() { return id; } public void setId(Long id) { this.id = id; } @Override public Object clone() throws CloneNotSupportedException { return super.clone(); } @Override public boolean equals(Object obj) { re...
Java.IO Java.Lang Java.Lang AbstractMethodError AbstractStringBuilder ArithmeticException ArrayIndexOutOfBoundsException ArrayStoreException AssertionError Boolean BootstrapMethodError Byte 文字 Character.Subset Character.UnicodeBlock Character.UnicodeScript CharSequenceConsts クラス ClassCastException ClassCircularityError...
其中java.lang.AbstractStringBuilder#setLength方法是用来裁剪StringBuilder对象内容的,如果参数为0,实际的功效就是清空。 官方的描述为: setLength(int newLength) 是AbstractStringBuilder 类中的一个方法,用于设置字符串的长度。具体来说,它有以下作用: 如果newLength 小于当前字符串的长度,则字符串将被截断为指定的长度...
String类型//sb : StringBuilder// 类型不一样没有可比性，不要忘记用toString()转换一下if(s.equals...
Set the TransportType value in the Connection String. String toString() Returns an inter-operable connection string that can be used to connect to EventHubs instances. Methods inherited from java.lang.Object clone equals finalize getClass hashCode notify notifyAll toString wait wait wait...
Method Summary 展開資料表 Modifier and TypeMethod and Description String getAuthentication() Get the authentication type in the Connection String. URI getEndpoint() Get the endpoint which can be used to connect to the EventHub instance. String getEventHubName() Get the entity path valu...
Unless otherwise noted, passing anullargument to a constructor or method in this class will cause aNullPointerExceptionto be thrown. Added in 1.5. Java documentation forjava.lang.AbstractStringBuilder. Portions of this page are modifications based on work created and shared by theAndroid Open Source...