JAVA中类似C的scanf()的赋值语句是什么啊

scanner scan = new scanner(system.in);
int a = scan.nextint();
string b = scan.next();
自己改一下大小写
就可以从控制台输入值了

输入输出流呗！：
public static void main(String[] args) throws IOException{
InputStreamReader reader = new InputStreamReader(System.in);
BufferedReader input = new BufferedReader(reader);
System.out.print("please input a number:");
String s = input.readLine();

System.in

int a=10;

a=100;

这不就改变了吗