How do I return a string?

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?

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.

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 you return a string in Java?

2 Answers. Your code is fine. There’s no problem with returning Strings in this manner. In Java, a String is a reference to an immutable object.

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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 the return value of Strxfrm ()?

Return Value

The strxfrm() function returns the length of the transformed string, excluding the ending null character. If the returned value is greater than or equal to count, the contents of the transformed string are indeterminate. If strxfrm() is unsuccessful, errno is changed.

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.

How do I print a string?

Input string containing spaces

  1. int main() { char z[100];
  2. printf(«Enter a stringn»); gets(z);
  3. printf(«The string: %sn», z); return 0; }

How do you pass a string to a function?

In C, if you need to amend a string in a called function, pass a pointer to the first char in the string as an argument to the function. If you have allocated storage for the string outside the function, which you cannot exceed within the function, it’s probably a good idea to pass in the size.

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.

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What is the return data 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.

What do you know about string?

A string is a data type used in programming, such as an integer and floating point unit, but is used to represent text rather than numbers. It is comprised of a set of characters that can also contain spaces and numbers. For example, the word «hamburger» and the phrase «I ate 3 hamburgers» are both strings.

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.

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 is return in Java?

Java return keyword is used to complete the execution of a method. The return followed by the appropriate value that is returned to the caller. This value depends on the method return type like int method always return an integer value.