oop methodname = StringTable::intern(method->name(), CHECK_0); oop filename = StringTable::intern(source, CHECK_0); 这三段代码是获取类名、方法名、和文件名。因为类名、方法名、文件名都是存储在字符串常量池中的,所以每次获取它们都是通过String#intern方法。但没有考虑到的是默认的 StringPool 的...
initially empty, is maintained privately by the * class {@code String}. * * When the intern method is invoked, if the pool already contains a * string equal to this {@code String} object as determined by * the {@link #equals(Object)} method...
Namespace: Java.Lang Assembly: Mono.Android.dll Returns a canonical representation for the string object. [Android.Runtime.Register("intern", "()Ljava/lang/String;", "")] public string Intern(); Returns String a string that has the same contents as this string, but is guaranteed to ...
在Java 7之前,无论对象是否已经存在于堆中,String.intern()方法都会在字符串常量池中创建一个新的对象。 Java 7之后,由于字符串常量池被移动到了堆中,执行String.intern()方法时,如果堆中已经存在了该对象,字符串常量池中就不会创建新的对象,而是直接保存堆中对象的引用。这一优化节省了一部分内存空间。 2. S...
在Java中,`String#intern()`方法是一个本地方法,它的实现与具体的Java虚拟机(JVM)实现有关。`String#intern()`方法的主要作用是将字符串添加到字符串常量池或从字...
intern()方法的功能定义: (1)如果当前字符串内容存在于字符串常量池(即equals()方法为true,也就是内容一样),那直接返回此字符串在常量池的引用; (2)如果当前字符串不在字符串常量池中,那么在常量池创建一个引用并指向堆中已存在的字符串,然后返回常量池中的引用。
* When the intern method is invoked, if the pool already contains a * string equal to this {@codeString} object as determined by * the {@link#equals(Object)} method, then the string from the pool is * returned. Otherwise, this {@codeString} object is added to the ...
* When the intern method is invoked, if the pool already contains a * string equal to this {@code String} object as determined by * the {@link #equals(Object)} method, then the string from the pool is * returned. Otherwise, this {@code String} object is added to the ...
2. intern() 含义 官方注释: When the intern method is invoked, if the pool already contains a string equal to this String object as determined by the equals(Object) method, then the string from the pool is returned. Otherwise, this String object is added to the pool and a reference to ...
strings, initially empty, is maintained privately by the class String. When the intern method ...