Scanner sc = new Scanner(System.in)这样就能接受用户键盘输入的数字/字符串
JAVA中有Scanner类可以实现这一目的;示例代码:
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in)
System.out.print("请输入整数:")
//此处会让你通过控制台输入数字
int num = scanner.nextInt()
System.out.println(num + 1)
}
importjava.util.*publicclassCount{/***@paramargs*/publicstaticvoidmain(String[]args){Scannersc=newScanner(System.in)//获取键盘输入inta=sc.nextInt()intb=sc.nextInt()intc=sc.nextInt()System.out.println("由大到小的顺序是:")if(a>b){if(b>c){System.out.println(a+""+b+""+c)}else{System.out.println(a+""+c+""+b)}}elseif(b>a){if(a>c){System.out.println(b+""+a+""+c)}else{System.out.println(b+""+c+""+a)}}elseif(c>a){if(a>b){System.out.println(c+""+a+""+b)}else{System.out.println(c+""+b+""+a)}}}}