Question: Can String Be A Return Type 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.

Can string be a return type?

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.

What is the return type in Java?

A return statement causes the program control to transfer back to the caller of a method. Every method in Java is declared with a return type and it is mandatory for all java methods. A return type may be a primitive type like int, float, double, a reference type or void type(returns nothing).

Can a string method return an int Java?

You can’t return a string from a function having int return type. If String a,b conatains any non-numeric value it will give ParseException. And As your method return int value,you are returning string value.So Java will throw exception.

How do you return a string array in Java?

In the following example, the method returns an array of integer type.

1. import java.util.Arrays;
2. public class ReturnArrayExample1.
3. {
4. public static void main(String args[])
5. {
6. int[] a=numbers(); //obtain the array.
7. for (int i = 0; i < a.length; i++) //for loop to print the array.
8. System.out.print( a[i]+ ” “);

How do you return a string from a function?

Allocate memory on the heap using malloc or similar, then return that pointer. The caller will then need to call free when it is done with the memory. Allocate the string on the stack in the calling function (the one that will be using the string), and pass a pointer in to the function to put the string into.

What string method can be used to return a string from the given string?

Java – String substring() Method example Method substring() returns a new string that is a substring of given string. Java String substring() method is used to get the substring of a given string based on the passed indexes. There are two variants of this method.

How can I return multiple values from a string in Java?

Returning Multiple values in Java

1. If all returned elements are of same type.
2. If returned elements are of different types.
3. Using Pair (If there are only two returned values) We can use Pair in Java to return two values.
4. If there are more than two returned values.
5. Returning list of Object Class.

How do you create a return type in Java?

Creating Method

1. public static − modifier.
2. int − return type.
3. methodName − name of the method.
4. a, b − formal parameters.
5. int a, int b − list of parameters.

How do you return an integer in Java?

Integer intValue() Method in Java Integer. intValue() is an inbuilt method in java that returns the value of this integer as an int. Parameters: The method does not accept any parameters. Return Value: The method returns the numeric value which is represented by the object after conversion to the integer type.

What is return used for in Java?

A return statement is used to exit from a method, with or without a value. For methods that define a return type, the return statement must be immediately followed by a return value. For methods that don’t return a value, the return statement can be used without a return value to exit a method.

How do you return an object from a method in Java?

“In order to return an object from a Java method, you must first declare a variable to hold a reference to the object.” So in this case, Ball is a variable that is a reference to the object.

What method returns a number as a String?

The Integer class has a static method that returns a String object representing the specified int parameter.

How do you return a value from a method in Java?

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. It does not need to contain a return statement, but it may do so.