import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;
public class EnterTest {
public static void main(String[] args) { //主方法
CharTest(); //调用System.in方法
ReadTest(); //调用ReadTest方法
ScannerTest();//调用ScannerTest方法
}
public static void CharTest(){
try{
System.out.print("Enter a Char:");
char i = (char)System.in.read();
System.out.println("Yout Enter Char is:" + i);
}
catch(IOException e){
e.printStackTrace();
}
}
public static void ReadTest(){
System.out.println("ReadTest, Please Enter data:");
InputStreamReader is = new InputStreamReader(System.in); //new构造InputStreamReader对象
BufferedReader br = new BufferedReader(is); //拿构造的方法传到BufferedReader中
try{ //该方法中有个IOExcepiton需要捕获
String name = br.readLine();
System.out.println("ReadTest Output:" + name);
}
catch(IOException e){
e.printStackTrace();
}
}
public static void ScannerTest(){
Scanner sc = new Scanner(System.in);
System.out.println("ScannerTest, Please Enter Name:");
String name = sc.nextLine(); //读取字符串型输入
System.out.println("ScannerTest, Please Enter Age:");
int age = sc.nextInt(); //读取整型输入
System.out.println("ScannerTest, Please Enter Salary:");
float salary = sc.nextFloat(); //读取float型输入
System.out.println("Your Information is as below:");
System.out.println("Name:" + name +"n" + "Age:"+age + "n"+"Salary:"+salary);
}
}
总结:
要获取键盘中的输入:
python提供了,python2中有raw_input(),python3中有input()。
c提供了scanf()函数
c++提供cin()函数来获取键盘输入
java中没有现成的函数来获取键盘输入,但仍然可以用上述方法来实现,其中方法三应该是最简单,最方便的。



