Question

java中怎么让小数点变百分比

Answer 1

import java.util.Scanner;

public class Change {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		System.out.println("输入一个数");
		double a = sc.nextDouble();
		double b = a*100;
		System.out.println(b+"%");
	}

}