[Solved] Meaning of “>>>” in Java [duplicate]

>>>= is similar to += but with a unsigned right shift (>>>) operation. int foo = Integer.parseInt(“1000”, 2); //shift 3 times to the right : “1000” becomes “0001” = “1” foo>>>=3; System.out.print(Integer.toBinaryString(foo)); output : 1 solved Meaning of “>>>” in Java [duplicate]

[Solved] How to delete part of a string in C++

#include <string> #include <iostream> // std::cout & std::cin using namespace std; int main () { string str (“This is an example phrase.”); string::iterator it; str.erase (10,8); cout << str << endl; // “This is an phrase.” it=str.begin()+9; str.erase (it); cout << str << endl; // “This is a phrase.” str.erase (str.begin()+5, str.end()-7); cout << str … Read more

[Solved] What does “+=” operator do? [duplicate]

From: https://docs.oracle.com/javase/tutorial/java/nutsandbolts/op1.html You can also combine the arithmetic operators with the simple assignment operator to create compound assignments. For example, x+=1; and x=x+1; both increment the value of x by 1. 6 solved What does “+=” operator do? [duplicate]

[Solved] Javascript performance, conditional statement vs assignment operator

When you have a non-refcounting language (which JavaScript isn’t) and doing an assignment (‘=’, resulting in a copy operation) of a big object it can be “slow”. So a check if that copy operation is really necessary can save you a significant amount of time. But JavaScript is a native refcounting language: object1 = {a: … Read more

[Solved] What does !type mean in this code?

Type is an instance of the String object, it has the method String#equals(…) and that method returns a boolean… “!” this is the negation opeator and inverts any boolean value… so !type.equals(“auto”) is a boolean condition as result from comparing whether the String var with the name type has the value “auto” . solved What … Read more

[Solved] What is the “

It’s the left shift operator. It shifts the value left by 2 bits, effectively multiplying it with 2 to the power of 2 (the shift amount). a << b Is the same as: a * (2 to the power of b) 3 solved What is the “