java基本输入语句_java键盘输入语句

import java.util.Scanner; // 导包的动作必须出现在类定义的上方

// new Scanner(System.in) 为固定格式，不可以改变
Scanner sc = new Scanner(System.in);	

int i = sc.nextInt();	// 这里使用的为int型，如果改变，则需要改变sc.nextInt();

import java.util.Scanner; // import the Scanner for input
public class input { 

public static void main(String[] args) { 

Scanner sc = new Scanner(System.in);
int i = sc.nextInt();
long l = sc.nextLong();
float f = sc.nextFloat();
String str = sc.nextLine();
System.out.println("i = " + i);
System.out.println("l = " + l);
System.out.println("f = " + f);
System.out.println("str = " + str);
}
}

BufferedReader br = new BufferedReader( new InputStreamReader(System.in) );
String input = br.readLine();