mainpro.java.bak

来自「Java就业的培训教程书籍」· BAK 代码 · 共 43 行

class ObjectUse{
	int x,y;
	private double a,b;
	ObjectUse(){
		x = 10;
		y = 20;
		a = 15.0;
		b = 30.0;
	}
	void changeInt(int i,int j){
		x = i;
		y = j;
	}
	void changeDouble(double r,double s){
		a = r;
		b = s;
	}
	int getX(){
		return x;
	}
	int getY(){
		return y;
	}
	double getA(){
		return a;
	}
	double getB(){
		return b;
	}
}
public class MainPro{
	public static void main(String args[]){
		ObjectUse classObj = new ObjectUse();
		System.out.println("通过访问对象成员变量获得类中非私有成员变量的值：");
		System.out.println("x = "+classObj.x+"  y = "+classObj.y);
		classObj.changeInt(11,22);
		System.out.println("通过访问对象成员方法获得类中非私有成员变量的值：");
		System.out.println("x = "+classObj.getX()+"  y = "+classObj.getY());
		classObj.changeDouble(33.0,44.0);
		System.out.println("通过访问对象成员方法获得类中私有成员变量的值：");
		System.out.println("a = "+classObj.getA()+"  b = "+classObj.getB());
	}
}