onedimensiondynamicinit.java

web 程序设计 jsp简单开发 java语言基础

package ch7.section7_2;
//OneDimensionDynamicInit.java
public class OneDimensionDynamicInit {
	public static void main(String[] args) {
		int a[];
		a = new int[3];
		a[0] = 3; a[1] = 9; a[9] = 8;
		Date days1[], days2[];
		days1 = new Date[3];
		days1[0] = new Date(2007, 5, 4); //为days[0]单元开辟空间
		days1[1] = new Date(2008, 3, 2); //为days[1]单元开辟空间
		days1[2] = new Date(2008, 10, 1); //为days[2]单元开辟空间
		days2 = new Date[30];
		for(int i=0; i<30; i++) {		//通过循环中初始化
			days2[++i] = new Date(2008, 1, ++i);
		}
	}
}

class Date {
	int year, month, day;
	Date(int y, int m, int d) {
		this.year = y;
		this.month = m;
		this.day = d;
	}
}