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34 lines
596 B
34 lines
596 B
package cn.csj.oo3;
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import java.util.Scanner;
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public class jjcc {
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static void sum(double a, double b) {
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double resum=a+b;
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System.out.println(a+"+"+b+"="+resum);
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}
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static void subtraction(double a,double b) {
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double resub=a-b;
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System.out.println(a+"-"+b+"="+resub);
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}
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static void mul(double a,double b) {
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double remul=a*b;
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System.out.println(a+"*"+b+"="+remul);
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}
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static void division(double a,double b) {
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double redivision=0;
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if(b!=0) {
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redivision=a/b;
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}
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else {
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redivision=0; /*表示错误*/
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}
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System.out.println(a+"÷"+b+"="+redivision);
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}
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}
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