how many return values can a method hava java

In Java, a method can have at most one return value. This means that a method can return a single value of a specific data type, or it can return void if it does not return a value.

Here's an example of a method that returns an int value:

public int add(int a, int b) {
  return a + b;
}

This method takes two int arguments and returns their sum as an int value.

Here's an example of a method that does not return a value (a void method):

public void printHello() {
  System.out.println("Hello!");
}

This method does not take any arguments and does not return a value. It simply prints the string "Hello!" to the console.

Keep in mind that a method can return a value of any data type, as long as it is compatible with the method's return type. For example, a method can return a String, a double, a boolean, or any other data type.

However, a method can only return a single value. If you want a method to return multiple values, you will need to use an alternative approach such as returning an array or an object that contains the multiple values.