Java Object-Oriented---method recursive invocation

Recursive invocation is a special form of invocation, which means that the method calls itself

public int method (int num) {

if (num==1) {

return 1;

} else {

Return Num+method (num-1);

}

}

Description: The Main method calls methods (5), in method methods The parameter is not equal to 1, then call Method (4), until the parameter equals 1, then return. In this example, the parameter equals 1 o'clock, returns 1 to Method (2), and so on, and then, when returned to method (5), and then returns from 1 to 5 and back to the main method.

Java Object-Oriented---method recursive invocation