j3_10.java

来自「石志国著《JSP应用教程》」· Java 代码 · 共 34 行

class BirthDate {
	private int day;
	private int month;
	public int year;
public void setDay(int d) { 
	day = d; 
  }
public void setMonth(int m) { 
	month = m; 
  }
public void setYear(int y) { 
	year = y; 
  }
public int getDay() { 
	return day; 
  }
public int getMonth() {      
	return month; 
  }
public int getYear() {
    return year;
  }
}
class ObjectOperating {	
public static void main(String args[]){
		BirthDate b = new BirthDate();
		b.setDay(25);
		b.setMonth(12);
		b.setYear(2003);
		//b.day = 2; //不合法，无权访问该私有属性
		b.year = 2003;	
    }
}