4ldc <String"Hello world"> [17]//将常量池中的字符串常量"Hello world"指向的堆中拘留String对象的地址压入操作数栈6invokespecial java.lang.String(java.lang.String) [19]//调用String的初始化方法,弹出操作数栈栈顶的两个对象地址,用拘留String对象的值初始化new指令创建的String对象,然后将这个对象的引用...
在Java中,所有类似“ABCabc”的字面值,都是String的实例;String类位于java.lang包下,是Java语言的核心类,提供了字符串的比较、查找、截取、大小写转换等操作;Java语言为“+”连接符以及对象转换为字符串提供了特殊支持,字符串对象可以使用“+”连接其他对象。String的部分源码如下: 代码语言:javascript 代码运行次数:...
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...
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_h,jchar*name,int len,TRAPS){...unsigned int hash=java_lang_String::hash_code(...
publicclasscom.justin.java.lang.InternTest{ publiccom.justin.java.lang.InternTest();Code:: aload_0 1: invokespecial #1// Method java/lang/Object."<init>":()V4:returnpublicstaticvoidmain(java.lang.String[]);Code::new #2// class java/lang/StringBuilder3: dup 4: invokespecial #3...
The implementation of string conversion is typically through the method toString, defined by Object and inherited by all classes in Java. Since: 1.0 See Also: Object.toString(), StringBuffer, StringBuilder, Charset, Serialized Form See The Java™ Language Specification: 15.18.1 String Concatenation...
Java.Security.Spec Java.Sql Java.Text Java.Time Java.Time.Chrono Java.Time.Format Java.Time.Temporal Java.Time.Zone Java.Util Java.Util.Concurrent Java.Util.Concurrent.Atomic Java.Util.Concurrent.Locks Java.Util.Functions Java.Util.Jar
Java.Awt.Font Java.Beans Java.Interop Java.Interop.Expressions Java.Interop.Tools.JavaCallableWrappers Java.IO Java.Lang Java.Lang AbstractMethodError AbstractStringBuilder ArithmeticException ArrayIndexOutOfBoundsException ArrayStoreException AssertionError Boolean BootstrapMethodError Byte Character Character.Subset...
Java String valueOf Method - Learn about the Java String valueOf method, its syntax, usage, and examples to convert different data types to Strings effectively.
java源码 /*** Returns a canonical representation for the string object. * * A pool of strings, 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 ...