Algorithms - Java中"stdlib"的使用

Java中"stdlib"的使用

本文地址: http://blog.csdn.net/caroline_wendy/article/details/17057265

stdlib是java中的输入输出库, 网址: http://introcs.cs.princeton.edu/java/stdlib

CSDN下载地址: http://download.csdn.net/detail/u012515223/6639631

把stdlib.jar放入Eclipse的dropins文件夹内,加载stdlib.jar, 位置: 项目->Properties, 如图:

stdlib主要包含两组函数: In & Out, StdIn & StdOut

In & Out 是通过参数进行读取; StdIn & StdOut 是直接通过Console进行读取;

具体代码如下:

public class Stdlib {	 	public static void main(String args[]) 	{ 		//In&Out的用法 		Out out = new Out(System.out); 		out.println("Read a file of integers: "); 		In in = new In(args[0]); 		int arr[] = in.readAllInts(); 		for (int i : arr) { out.print(i + " "); } 		out.println("end"); 		 		//StdIn&StdOut的用法 		StdOut.println("Please input an array of integers (Ctrl+Z end): "); 		while(!StdIn.isEmpty()) { 			int val = StdIn.readInt(); 			StdOut.print(val + " "); 		} 		StdOut.println("end"); 	} }

输出:

Read a file of integers:  1 2 3 4 5 6 7 8 9 10 end Please input an array of integers (Ctrl+Z end):  11 12 13 14 15 11 12 13 14 15 end