Detail: Field | Constr | Method Submit a bug or feature For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples....
1: invokespecial #1// Method java/lang/Object."<init>":()V 4:return publicstaticvoidmain(java.lang.String[]); Code: 0: ldc #2// String aaa 2: astore_1 3:new#3// class java/lang/StringBuilder 6: dup 7: invokespecial #4// Method java/lang/StringBuilder."<init>":()V ...
AI代码解释 /** * Appends the specified string to this character sequence. * * The characters of the {@code String} argument are appended, in * order, increasing the length of this sequence by the length of the * argument. If {@code str} is {@code null}, then the four * character...
1classStringBuilderDemo2{3publicstaticvoidmain(String[] args)4{5//method_update();6/*StringBuilder sb=new StringBuilder("abcdef");7char[] chs=new char[6];8sb.getChars(1,4,chs,1);//将数组sb中1~4位置的内容传入chs中,是从1位置开始传入。910for(int x=0;x<chs.length;x++)//将数组中...
String类用于保存字符串的类型String是引用数据类型String类是字符串常量类,一旦定义不能修改 String类定义方式 String类的定义方式 1、直接赋值Stringstr="zhangsan"; 2、通过构造方法String(byte[]bytes,intoffset,intlength)String(char[]bytes,intoffset,intcount) ...
* 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 ...
At any point in time it contains some particular sequence of characters, but the length and content of the sequence CAN BE CHANGED through certain method calls. Appendable:An object to which char sequences and values can be appended. 数据结构 String final 型byte数组,不可修改性的源头。
* contains only latin1 character. Or a byte[] that stores all * characters in their byte sequences defined by the {@code StringUTF16}. */ String(char[] value, int off, int len, Void sig) { if (len == 0) { this.value = "".value; ...
[Android.Runtime.Register("compareTo", "(Ljava/lang/StringBuilder;)I", "", ApiSince=34)] public int CompareTo (Java.Lang.StringBuilder another); Parameters another StringBuilder the StringBuilder to be compared with Returns Int32 the value 0 if this StringBuilder contains the same character ...
由于String类型描述的字符串内容是常量不可改变,因此Java虚拟机将首次出现的字符串放入常量 池中,若后续代码中出现了相同字符串内容则直接使用池中已有的字符串对象而无需申请内存及创建对 象,从而提高了性能。 即内容一样的字符串,地址值是一样的,因为这个字符串是常量 ...