partarea1.java

编程之道--java程序设计入门源代码

/*
*块的嵌套
*/
public class PartArea1
{
  public static void main(String[] args)
	{
		int a = 15;
		int b = 2;
		if(a == 15)
		{
		  int a = 10;
			double c = 2;//c是可用的
			System.out.println(a + "/" + c + "=" + (a/c));
			System.out.println("the value a is " + a);//a是可用的
		}
		//System.out.println("the value c is " + c);//在这里c已经不再可用
		System.out.println(a + "/" + b + "=" + (a/b));
		System.out.println(a + "%" + b + "=" + (a%b));
	}
}