How To Return String In Java?

How do I 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. All forms are perfectly valid. Note the use of const, because from the function I’m returning a string literal, a string defined in double quotes, which is a constant.

How do you write a return type in Java?

How to return primitive values like int, float, double?

  1. public class Sample.
  2. {
  3. // Declare a method with return type int.
  4. int m1()
  5. {
  6. System. out. println(“m1 method”);
  7. // If you declare a method to return a value, you must return a value of declared type. Since the return type of m1() method is an integer.
  8. return 20;

How do you return 3 strings in Java?

You should rather create a custom class that owns three String fields and return an instance of it in your method. The recommended option: create a specific class that “wraps around” those three values. Rather set the field values via a constructor call; and have getter methods to fetch their content.

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What is the return type of string?

The getReturnType() method of Method class Every Method has a return type whether it is void, int, double, string or any other datatype. The getReturnType() method of Method class returns a Class object that represent the return type, declared in method at time of creating the method.

Can a function return a string?

Yes it’s possible to return a string from a function. Simply declare the function as a char * which would allow you to return a pointer to the desired string.

Is string a return type in Java?

Take a look at this comparison. In Java, char[], String, StringBuffer, and StringBuilder are used to store, take, and return string data.

Is void a 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.

How do I fix a missing return in Java?

In order to solve the missing return statement error, we simply need to add the return statement to the method just like to the one we did in case one. So, we will return the some value of the same type which we used before the name like as: public static String checkNumber( int number) { //initialize variable i.

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.

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How can I return two strings in Java?

String [] arr = new String [2]; arr[0] = ans1; arr[1] = ans2; return arr; where we create a length 2 String array, assign the first value to ans1 and the second to ans2 and then return that array. return new String [] { ans1, ans2 };

Can we return array in Java?

We can return an array in Java from a method in Java. Here we have a method createArray() from which we create an array dynamically by taking values from the user and return the created array.

Can you return nothing in Java?

In Java, a null value can be assigned to an object reference of any type to indicate that it points to nothing. In the absence of a constructor, the getArticles() and getName() methods will return a null reference.

What are the return types?

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 does an empty return do Java?

3 Answers. Return in a void function is used to escape the control flow before the natural end of a function. As such, it needs to be a valid statement. Going out of your way to explicitly forbid it as the final statement in a function serves no purpose except to break existing code.

What is the return type for ArrayList?

Returning an ArrayList is quite convenient. All you need to do is use the ‘ return ‘ keyword. The method that returns nothing uses the keyword ‘void’ in the method declaration else it needs a return type for this purpose. For instance, a method that returns integer values uses ‘int’ as a return type.

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