String.Intern Method ทําการทดสอบ 21 พฤษภาคม – 21 มิถุนายน 2024 ลงทะเบียนตอนนี้ ปิดการแจ้งเตือน...
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...
initially empty, is maintained privately by the class String. 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...
oop StringTable::intern(oop string,TRAPS){if(string==NULL)returnNULL;...Handleh_string(THREAD,string);jchar*chars=java_lang_String::as_unicode_string(string,length,CHECK_NULL);oop result=intern(h_string,chars,length,CHECK_NULL);returnresult;}...oop StringTable::intern(Handle string_or_null...
the class String. When the intern method is invoked, if the pool already contains a string ...
classString. When the intern method is invoked, if the pool already contains a string equal to thisStringobject as determined by the {@link #equals(Object)} method, then the string from the pool is returned. Otherwise, thisStringobject is added to the pool ...
String##intern()源码 先来看一下intern()方法的JDK源码如下：/** * Returns a canonical representation for the string object. * * A pool of strings, initially empty, is maintained privately by the * class {@code String}. * * When the intern method is invoked, if the pool already conta...
* class {@codeString}. * * 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...
String b=newStringBuffer("a").append("a").toString(); System.out.println(a==b); // falseif(a.intern() ==a) { //true System.out.println("intern method was == the first object"); } System.out.println(a.intern()==b); //false ...
HashMap的put方法是会计算key的哈希值,所以不管String是从常量池返回还是new出来的都一样 从intern()方法的注释中看到,它会从String的常量池中找这个字符串,找到了就返回常量池中的字符串,没找到就常量池新增这个字符串,然后返回。 When the intern method is invoked, if the pool already contains a string equ...