第1个回答 2012-03-30
import java.util.Scanner;
public class TestOne {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
System.out.println("pleas input two number:");
int a=sc.nextInt();
int b=sc.nextInt();
math mt=new math(a,b);
System.out.println(mt.add());
System.out.println(mt.sub());
System.out.println(mt.mul());
System.out.println(mt.div());
}
}
class math{
static int x;
static int y;
public math(int inputx,int inputy){
x=inputx;
y=inputy;
}
int add(){
return x+y;
}
int sub(){
return x-y;
}
int mul(){
return x*y;
}
int div(){
return x/y;
}
}
第2个回答 2012-03-30
package one;
import java.util.Scanner;
public class Math {
double a;
double b;
public Math(double a,double b){
a = this.a;
b = this.b;
}
public double add(double a,double b){
System.out.println(a + b);
return a + b;
}
public double sub(double a,double b){
System.out.println(a - b);
return a - b;
}
public double mul(double a,double b){
System.out.println(a * b);
return a * b;
}
public double div(double a,double b){
if (b == 0){
System.out.println("被除数不能为0");
return 0;
}
System.out.println(a / b);
return (a / b);
}
public static void main(String[] args) {
Scanner in=new Scanner(System.in);
System.out.println("请输入两个数字:");
double c = in.nextDouble();
double d = in.nextDouble();
Math m = new Math(c, d);
m.add(c, d);
m.sub(c, d);
m.mul(c, d);
m.div(c, d);
}
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