Algorithms - Java中"stdlib"的使用

Java中stdlib的使用

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);
	}
}

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