sample7_14.java

Java SE 6.0前11章示的示例代码,简单易学

package wyf;
public class Sample7_14
{
	//声明并初始化int型成员变量x1
	final int x1=100;
	//声明final 的int型成员变量x2与x3
	final int x2;
	final int x3;	
	{
		//初始化x2
		x2=120;	
	}
	public Sample7_14()
	{
		//初始化x3
		x3=140;
	}	
	public void showFinalX()
	{
		//显示三个final的成员变量
		System.out.println("Final x1的值为"+x1+", Final x2的值为"+x2+", Final x3的值为"+x3+"。");
	}
	public static void main(String args[])
	{
		Sample7_14 ss=new Sample7_14();
		ss.showFinalX();
	}	
}