从console读取数据的简单方法

package io;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;

public class ConsoleInput {

	public static void main(String[] args) {
		ConsoleInput consoleInput = new ConsoleInput();
		consoleInput.viaScanner();
		consoleInput.viaBufferedReader();
	}
	
	/**
	 * 通过java.util.Scanner类来读取
	 */
	void viaScanner(){
		Scanner in = new Scanner(System.in);
		System.out.println("得到第一个输入:"+in.nextLine());
		//如果输入的不是数字会报java.util.InputMismatchException
		System.out.println("得到第二个输入:"+in.nextFloat());
	}
	
	/**
	 * 通过BufferedReader来读取
	 */
	void viaBufferedReader(){
		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
		try {
			System.out.println("得到第三个输入:"+reader.readLine());
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}