How do you return a string in Java?

How do you write a return type in Java?

A return type may be a primitive type like int, float, double, a reference type or void type(returns nothing). The type of data returned by a method must be compatible with the return type specified by the method. For instance, if the return type of some method is boolean, we can not return an integer.

What is the return type of string?

In your original method, you put the return type as void . With the return type as void, you cannot return the encrypted String . So it occurred to me that maybe you wanted to pass by reference and modify strTarget itself. To do this, instead of passing strTarget , you would pass a StringBuilder .

Can we return a string?

Strings in C are arrays of char elements, so we can’t really return a string — we must return a pointer to the first element of the string.

How do you return data in Java?

whichever occurs first. You declare a method’s return type in its method declaration. Within the body of the method, you use the return statement to return the value. Any method declared void doesn’t return a value.

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How do I fix a missing return in Java?

Fix it by adding the return statement for the method similar to the one we did in case 1 above i.e adding line return «Alive is Awesome»; Note: Assuming the return type of method is not void. You must provide the return statement for the method, which should be the last statement in the method.

What does return in Java do?

The return keyword is used to return from a method when its execution is complete. When a return statement is reached in a method, the program returns to the code that invoked it. … If a method does not return a value, the method must be declared void and it doesn’t need to contain a return statement.

Is void return type?

Void functions are created and used just like value-returning functions except they do not return a value after the function executes. … You may or may not use the return statement, as there is no return value. Even without the return statement, control will return to the caller automatically at the end of the function.

What is the return value of putchar ()?

putc( ch, STDOUT ); The return value of putchar() is the written character, or EOF if there is an error.

What is meant by return type?

In computer programming, the return type (or result type) defines and constrains the data type of the value returned from a subroutine or method. In many programming languages (especially statically-typed programming languages such as C, C++, Java) the return type must be explicitly specified when declaring a function.

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Can we return string in Python?

Python return string

We can use the str() function to get the string representation of an object.

How do you return a string from a method?

  1. public static void main(String[] args) { // take input. Scanner scan = new Scanner(System. …
  2. String str = scan. nextLine(); // reverse the string. …
  3. // display result string. println( «Reverse String: » + …
  4. String rev = new String(); for(int i=s. …
  5. // On every iteration new string. // object will be created. …
  6. } return rev;

Can we return a string in C++?

Use the std::string func() Notation to Return String From Function in C++ Return by the value is the preferred method for returning string objects from functions. Since the std::string class has the move constructor, returning even the long strings by value is efficient.

What is Java void?

void is a Java keyword. Used at method declaration and definition to specify that the method does not return any type, the method returns void .

What is the difference between return 0 and return 1?

return 0 in the main function means that the program executed successfully. return 1 in the main function means that the program does not execute successfully and there is some error. … return 1 means that the user-defined function is returning true.

What is the return type of constructors?

What is the return type of Constructors? Explanation: Constructors does not have any return type, not even void. … Explanation: A constructor is a method that initializes an object immediately upon creation. It has the same name as that of class in which it resides.