public class Example1{
public static void main(String[]args);{
Scanner input = new Scanner(System.in);
int x,y;
System.out.println("Enter an integer");
x = input.nextInt();
System.out.println("Enter another integer");
y = input.nextInt();
System.out.println("the sum of"+x+"and"+y+"is"+(x+y));
System.out.println("the product of"+x+"and"+y+"is"+(x*y));
}
}

在开头加上
import java.util.Scanner;

编写时,一定要细心.

String[]args中间有空格

package loveInJava;
import java.util.*;
public class Example1{
public static void main(String args[]){
Scanner input = new Scanner(System.in);
int x,y;
System.out.println("Enter an integer");
x = input.nextInt();
System.out.println("Enter another integer");
y = input.nextInt();
System.out.println("the sum of"+x+"and"+y+"is"+(x+y));
System.out.println("the product of"+x+"and"+y+"is"+(x*y));
}
}
我也初学，爱犯同样错误。。。。。。