testinteger.java

一些JavaAPI测试的源代码(包括一些Java中常用的数据结构类

/**
 *Author Miracle
 *Time	2005.11.24 22:07
 *
 */
 /**** Basic Data Test****/
 
 public class TestInteger
 {
 	public static void main(String[] args)
 	{
 		int width = new Integer(args[0]).intValue();	
 		int height = Integer.parseInt(args[1]);
 		//int height = Integer.ValueOf(args[1]).intValue();
 		Long startTime = System.currentTimeMillis();	
 		for (int i=0; i<width; i++)
 		{
 			
 			/*
 			StringBuffer buffer = new StringBuffer();
 			for (int j=0; j<height; j++)
 			{
 				buffer.append('*');	
 			}
 			System.out.println(buffer.toString());
 			*/
 			String buffer = new String();
 			for (int j=0; j<height; j++)
 			{
 				//buffer = buffer + '*';
 				buffer = buffer + "*";
 				
				/**　试了一下用下面三条语句的时间，差别好大耶，单位应该是ms吧　**/
 				/**result :
 				 * buffer = buffer + '*'; Running Time is 270l
 				 * buffer = buffer + "*"; Running Time is 251;
 				 * buffer.append('*')     Running Time is 241;
 				 */
 			}
 			System.out.println(buffer.toString());
 		}
 		Long endTime = System.currentTimeMillis();
 		System.out.println("TotalRunningTime is "+(endTime-startTime));
 	}
 }