是否可以仅从另一个函数中调用函数？

def function1():
    print("This is function 1")

def function2():
    function1()
    print("This is function 2")

function2()

function function1() {
    console.log("This is function 1");
}

function function2() {
    function1();
    console.log("This is function 2");
}

function2();

public class Main {
    public static void function1() {
        System.out.println("This is function 1");
    }

    public static void function2() {
        function1();
        System.out.println("This is function 2");
    }

    public static void main(String[] args) {
        function2();
    }
}