this的用法 this("hi", 47);this(petals);

public class Flower {
private int petalCount = 0;
private String s = new String("null");
Flower(int petals) {
petalCount = petals;
System.out.println(
"Constructor w/ int arg only, petalCount= "
+ petalCount);
}
Flower(String ss) {
System.out.println(
"Constructor w/ String arg only, s=" + ss);
s = ss;
}
Flower(String s, int petals) {
this(petals);
//! this(s); // Can't call two!
this.s = s; // Another use of "this"
System.out.println("String & int args");
}
Flower() {
this("hi", 47);
System.out.println(
"default constructor (no args)");
}
void print() {
//! this(11); // Not inside non-constructor!
System.out.println(
"petalCount = " + petalCount + " s = "+ s)

this的用法 JAVA关于THIS的用法 this和the的用法 c#中this的用法 简单明了的说明this 的用法 c++中"this"的用法? JAVA（this用法） the this 用法 c# THIS 是的用法 在VC++中this->的用法？为什么很多时候要加this->呢？