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What does .class mean in Java? - Stack Overflow
2013年2月26日 · A class literal is an expression consisting of the name of a class, interface, array, or primitive type, or the pseudo-type void, followed by a '.' and the token class. One of the changes in JDK 5.0 is that the class java.lang.Class is generic, java.lang.Class Class<T>, therefore: Class<Print> p = Print.class; References here:
How do I compare strings in Java? - Stack Overflow
2013年4月2日 · The Java String class actually overrides the default equals() implementation in the Object class – and it overrides the method so that it checks only the values of the strings, not their locations in memory.
java - Convert String into a Class Object - Stack Overflow
However, note that while many object types in Java have string representations, this does not guarantee that an object can be constructed from its string representation. To quote this source , Object serialization is the process of saving an object's state to a sequence of bytes, as well as the process of rebuilding those bytes into a live ...
about java: get `String [].class` from `String.class`, what if `String ...
2012年11月15日 · Here is a variable Class<?> cls, now I want to get another Array Class Object which component type is cls.. For example, if cls=String.class, I want to get String[].class; if cls=int.class, I want to get int[].class, what should I do?
How to do `MyClass<String>.class` in Java? - Stack Overflow
2011年3月6日 · Because of type erasure type parameters to Java classes are entirely a compile-time construct - even if List<String>.class was valid syntax, it would be the exact same class as List<Date>.class, etc. Since reflection is by nature a runtime thing, it doesn't deal well with type parameters (as implemented in Java).
How to convert String type to Class type in java - Stack Overflow
However I want to merge the two codes. Since in the first code I got the classnames in the form of string , I can't use Classname.class.getAttribute() since here Classname will be of type String. So I want a method which will convert the "Classname" from String type to Class type. I tried Class.forName() but it didn't work.
java - How to create a String class replica? - Stack Overflow
From your question it sounds like the thing you are looking for is simple delegation:. class MyString { String delegate; // The actual string you delegate to from your class public MyString(String delegate) { this.delegate = delegate; // Assign the string that backs your class } int length() { return delegate.length(); // Delegate the method call to the string } // other methods …
java - Why is String a class? - Stack Overflow
2012年10月3日 · String s = "Hello"; // just syntactic sugar String s = new String("Hello"); Behind the hood both forms are not 100% equivalent, as the syntax using "" tries to reuse strings from Java's string pool, whereas the explicit instantiation with new String("") will always create a …
Why is the String class declared final in Java? - Stack Overflow
A string literal like "java" is actually an object of the String class (you can use the dot operator on it, immediately following the closing quote). So assigning a literal to a string variable is just assigning object references as usual.
What is the difference between String[] and String... in Java?
String[] is an array of Strings. Therefore a container of many variables of String data type. For example: String[] strArray = new String[2]; str[0] = "Hello"; str[1] = "World"; String str = "Hello World";