WebSo that first statement doesn't create two String objects when it's run, but it is responsible for two being created--one when it's executed and one before that (either at compile time or class load time, depending on how you define "creation" of a String). And yawmark, I know new String("abc") creates a new String object, but are you sure it ... WebJul 8, 2024 · 首先在java heap中创建了“abc”,然后调用String的构造函数:. public String(String original) { this.value = original.value; this.hash = original.hash; } 在构造函数中,String将底层的字符串数组赋值给value。. 因为Array的赋值只是引用的赋值,所以上述new操作并不会产生新的字符串字 ...
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WebSep 21, 2024 · String s ="a"+"b"+"c"; 如果你比较一下Java源代码和反编译后的字节码文件,就可以直观的看到答案,只创建了一个String对象。. 估计大家会有疑问了,为什么源代码 … WebJun 16, 2010 · 16. One creates a String in the String Constant Pool. String s = "text"; the other one creates a string in the constant pool ( "text") and another string in normal heap space ( s ). Both strings will have the same value, that of "text". String s = new String ("text"); s is then lost (eligible for GC) if later unused. franchise kicks amazon
What is the difference between "text" and new String("text")?
WebApr 15, 2015 · String str只是定义了一个名为str的String类型的变量,因此它并没有创建对象;=是对变量str进行初始化,将某个对象的引用(或者叫句柄)赋值给 它,显然也没有创 … WebString str="abc"和String str = new String("abc")的区别总结为: 创建对象个数不同。 String str="abc"只在字符串常量池里创建一个对象。(如果字符串常量池里有"abc",则一个都不 … WebJun 27, 2024 · String b = new String ("123"); 如上第1行,定义了一个常量 a ,第2行,通过关键字 new 的形式,创建了一个变量 b 。 我们结合之前学过的 JVm 再深入一些,第1行在常量池开辟了一块空间,存放字符串 123,通过 a 对象指向这个常量对象。 franchise pékség nyitása