Recent questions tagged initialization

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initialization - Java variable may not have been initialized

I'm working on Project Euler Problem 9, which states: A Pythagorean triplet is a set of three natural numbers, ... error. Why is this happening? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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initialization - Why can't I initialize a variable inside a switch in Java?

I am just a beginner at programming, so I couldn't find my way around this. Existing questions seem to be ... variable outside the switch... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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initialization - Objective-C Is it safe to overwrite [NSObject initialize]?

Basically, I have the following code (explained here: Objective-C Constants in Protocol) // MyProtocol.m ... NSObject's +initialize method? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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initialization - C++ Default constructor

Given the following code: class temp { public: string str; int num; }; int main() { temp temp1; temp temp2 = ... temp1; and temp temp2 = temp(); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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initialization - C++ global variable not initialized when linked through static libraries, but OK when compiled with source

I have created a system that automatically registers function objects (functors) into a map based on the ... registration within one binary. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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initialization - Why most Delphi examples use FillChar() to initialize records?

I just wondered, why most Delphi examples use FillChar() to initialize records. type TFoo = record i: Integer; s ... value is a better way. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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initialization - What happens to a declared, uninitialized variable in Java?

Does it have a value? I am trying to understand what is the state of a declared but not-initialized variable/ ... the "Not Initialized" error. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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initialization - Why do I have to assign a value to an int in C# when defaults to 0?

This works: class MyClass { int a; public MyClass() { int b = a; } } But this gives a compiler error ... practices". Or is there another reason? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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initialization - Assigning to self in Objective-C

I'm from the C++ world so the notion of assigning this makes me shudder: this = new Object; // Gah! But in ... .my_foo = 42; } return self; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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initialization - Objective-C: init vs initialize

In Objective-C, what is the difference between the init method (i.e. the designated initializer for a class) and ... code should be put in each? See Question&Answers more detail:os...