constrctdemo1.java

来自「JAVA的一些基础教程」· Java 代码 · 共 46 行

class Monitor
{
	private String brand;
	private int	color;
	private String  size;

	public Monitor(String brand, int color, String s)
	{
		this.brand = brand;
		this.color = color;
		this.size  = s;
		System.out.println("-------------");
	}	
	public Monitor(String brand){
//		System.out.println("构造函数重载"); 错误，this调用必须在第一行
		this(brand,1);
		System.out.println("构造函数重载");
	}
	public Monitor(String brand,int color)
	{
		this(brand,color,"15");
	}
	public void printInfo()
	{
		System.out.println("This monitor is\n brand=\t"+ brand);
		System.out.println("color=\t"+ color);
		System.out.println("size=\t"+ size + "\n");
	}
}

public class ConstrctDemo1
{
	public static void main(String arg[])
	{

		Monitor a = new Monitor("IBM",50,"17");
		a.printInfo();
		Monitor b = new Monitor("DELL");
		b.printInfo();
/*
		Monitor c = new Monitor();
		c.printInfo();
*/
	}
}