java - 比較可能なcompareTo関数

Question

Comparable 関数で 2 つの住所を比較しようとしています。現在、住所の文字列（通りの名前）を作成中です。これまでのところ、次のコードがあります。最終的には番地も比較できるようにしたいのですが、最初にこのコードを修正できるようにしたいと考えています。このコードをコンパイルしようとすると、次のエラーが発生します。

StreetAddress.java:45: error: constructor StreetAddress in class StreetAddress cannot be applied to given types;
    StreetAddress add1 = new StreetAddress("cartesian road");
                         ^
  required: no arguments
  found: String
  reason: actual and formal argument lists differ in length
StreetAddress.java:46: error: constructor StreetAddress in class StreetAddress cannot be applied to given types;
    StreetAddress add2 = new StreetAddress("cartesian road");
                         ^
  required: no arguments
  found: String
  reason: actual and formal argument lists differ in length
StreetAddress.java:47: error: constructor StreetAddress in class StreetAddress cannot be applied to given types;
    StreetAddress add3 = new StreetAddress("n kings street");
                         ^
  required: no arguments
  found: String
  reason: actual and formal argument lists differ in length
StreetAddress.java:48: error: constructor StreetAddress in class StreetAddress cannot be applied to given types;
    StreetAddress add4 = new StreetAddress("pioneer parkway");
                         ^
  required: no arguments
  found: String
  reason: actual and formal argument lists differ in length
StreetAddress.java:49: error: constructor StreetAddress in class StreetAddress cannot be applied to given types;
    StreetAddress add5 = new StreetAddress("starry avenue");
                         ^
  required: no arguments
  found: String
  reason: actual and formal argument lists differ in length
5 errors

---

public class StreetAddress implements Comparable<StreetAddress>
{
protected int num;
protected String stName;

public void StreetAddress(int n, String s){
num = n;
stName = s;
}

public int getNum(){
    // returns the street number
    return num;
}

public String getName(){
    // returns the street name
    return stName;
}

public int compareTo(StreetAddress street) throws ClassCastException{
    // exception prevents crash if an address is not compared to
    // another address
    StreetAddress x = (StreetAddress) street;
    int compareName = this.stName.compareTo(street.stName); 
    if (compareName < 0){
        // first address comes after compared address
        System.out.println("test<0");
    }

    else if (compareName == 0){
        // same address
        System.out.println("test equal");
    }

    else{
        // first address comes before compared address
        System.out.println("test > 0");
    }

    }

public static void main(String args[])
{
StreetAddress add1 = new StreetAddress("cartesian road");
StreetAddress add2 = new StreetAddress("cartesian road");
StreetAddress add3 = new StreetAddress("n kings street");
StreetAddress add4 = new StreetAddress("pioneer parkway");
StreetAddress add5 = new StreetAddress("starry avenue");
add1.compareTo(add2);
add4.compareTo(add1);
add3.compareTo(add3);
add2.compareTo(add5);
}
}