xyz.java

清华大学第二版

public class Xyz {
	int x;
	public Xyz() {
	//x = 0;
	this.x=0;
	}
	public Xyz(int i) {
		//x = i;
		this.x =i;
	}
	
	
	
	
public static void main (String args[]){
	Xyz Xyz1 = new Xyz();
	
	
	
	Xyz Xyz2 = new Xyz(5); 
	
	System.out.println(Xyz1.x  +" " +  Xyz2.x);
	
	
	}
 
}