input3.java

JAVA程序设计课程中各章节的程序实例。

/**
*Another way in Java to get input from the keyboard,


*/

import java.io.*;

class Input3
{
	public static void main(String args[]) throws IOException
	{
		double value;

		value = getDouble();
		System.out.println(value);
	}

	public static String getString() throws IOException
	{
		BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));

		return bf.readLine();
	}

	public static int getInt() throws IOException
	{
		String s = getString();

		return Integer.parseInt(s);
	}

	public static char getChar() throws IOException
	{
		String s = getString();

		return s.charAt(0);
	}

	public static double getDouble() throws IOException
	{
		String s = getString();

		return Double.parseDouble(s);
	}

	public static long getLong() throws IOException
	{
		String s = getString();

		return Long.parseLong(s);
	}
}