final

问题 This question already has answers here : In Java, is there a legitimate reason to call a non-final method from a class constructor? (5 answers) Closed 5 years ago . I'm a Java novice and I was trying to make sense of the following line from the tutorial at the Oracle website: https://docs.oracle.com/javase/tutorial/java/IandI/final.html Methods called from constructors should generally be declared final. If a constructor calls a non-final method, a subclass may redefine that method with

问题 This question already has answers here : In Java, is there a legitimate reason to call a non-final method from a class constructor? (5 answers) Closed 5 years ago . I'm a Java novice and I was trying to make sense of the following line from the tutorial at the Oracle website: https://docs.oracle.com/javase/tutorial/java/IandI/final.html Methods called from constructors should generally be declared final. If a constructor calls a non-final method, a subclass may redefine that method with

问题 This question already has answers here : In Java, is there a legitimate reason to call a non-final method from a class constructor? (5 answers) Closed 5 years ago . I'm a Java novice and I was trying to make sense of the following line from the tutorial at the Oracle website: https://docs.oracle.com/javase/tutorial/java/IandI/final.html Methods called from constructors should generally be declared final. If a constructor calls a non-final method, a subclass may redefine that method with

来源： https://stackoverflow.com/questions/32375149/is-it-mandatory-utility-class-should-be-final-and-private-constructor

来源： https://stackoverflow.com/questions/32375149/is-it-mandatory-utility-class-should-be-final-and-private-constructor

来源： https://stackoverflow.com/questions/32375149/is-it-mandatory-utility-class-should-be-final-and-private-constructor

来源： https://stackoverflow.com/questions/32375149/is-it-mandatory-utility-class-should-be-final-and-private-constructor

问题 I am working with Java and come through one random problem. Here I had shared sample code of my problem. I want to initialize some of static final date field with my custom string format. public class Sample { protected static final Date MAX_DATE ; static { try { MAX_DATE = new SimpleDateFormat("yyyy-MM-dd").parse("2099-12-31"); } catch (ParseException e) { e.printStackTrace(); } } } While directly putting below line, it's asking for try and catch. protected static final Date MAX_DATE= new

问题 Please help me understand the difference between constant variables and final variables in Java. I am a bit confused with it. 回答1: Constant is the concept, the property of the variable. final is the java keyword to declare a constant variable. As other people pointed out, from a semantic/linguistic point of view the expression constant variable is an oxymoron and, as such, we could argue about its correctness. Quoting the specification, anyway, we can read A variable of primitive type [...],

问题 Please help me understand the difference between constant variables and final variables in Java. I am a bit confused with it. 回答1: Constant is the concept, the property of the variable. final is the java keyword to declare a constant variable. As other people pointed out, from a semantic/linguistic point of view the expression constant variable is an oxymoron and, as such, we could argue about its correctness. Quoting the specification, anyway, we can read A variable of primitive type [...],