input.java

java小程序

import java.io.*;
public class Input
{
public static void main(String args[])
throws IOException
{
String str;
int a;
BufferedReader buf=new BufferedReader(new InputStreamReader(System.in));
System.out.println("请输入一个数：");
str=buf.readLine();
a=Integer.parseInt(str);
int a2=a*a;
int a3=a2*a;
int a4=a3*a;
System.out.println(a+"平方="+a2);
System.out.println(a+"立方="+a3);
System.out.println(a+"四次方="+a4);
}
}