public class Calculator { // v1.0 支持操作符: + - * / 只支持int类型计算,原因是用的int数组来存储的数据 // 并且除法运算过程中会产生较大误差, int类型/int类型导致, 尽量避免除法运算 // 返回运算符优先级 0 --> +和- 1 ---> *和/ // 从栈pop出来的数字和运算符为int类型(这个栈用线性表...
import java.util.Scanner; public class Demo06 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("请输入要操作的选项:1 加法 2 减法 3 乘法 4 除法"); String str = sc.next(); char select=str.charAt(0); switch (select) { case '1'...
计算器程序实现 接下来,我们将设计一个主程序CalculatorApp,通过用户输入选择运算类型和两个操作数,来调用Calculator类中的方法进行计算。 importjava.util.Scanner;publicclassCalculatorApp{publicstaticvoidmain(String[]args){Scannerscanner=newScanner(System.in);System.out.println("请选择运算类型:1.加法 2.减法 ...
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 packagecom.kuang.scanner; importjava.util.Scanner; publicclassDemo06 { publicstaticvoidmain(String[] args) { jisuanqi(); } publicstaticvoid...
Java用接口实现加减乘除计算器 Java⽤接⼝实现加减乘除计算器class Test{ public static void main(String[] args) { fun i=new fun();jiafa s1=new jiafa();jianfa s2=new jianfa();chengfa s3=new chengfa();chufa s4=new chufa();System.out.print("加法结果:");i.func(s1,6,3);System.out....
计算器类 package calculator; import java.util.Scanner; public class Calculator{ private float number1; private float number2; private float addresult; private float minusresult; private float multipleresult; private float divideresult; public Calculator() { ...
(3)用switch进行+、-、*、/的判断选择,调用相应的方法实现两个整数间的加减乘除运算。 2、Java代码 package com.yy.method; import java.util.Scanner; public class calculate { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); ...
int num1; //运算数1 int num2; //运算数2 public int add(){ return (num1 + num2);} public int minus(){ return (num1 - num2);} public int multiple(){ return (num1 * num2);} public int divide(){ return (num1/num2);} }新建test.class public class test...
import java.awt.event.WindowListener;public class Calculator { public static void main(String[] args) { Frame f = new Frame("Calculator");final TextField tf = new TextField();Panel p = new Panel();f.setLayout(new BorderLayout());f.add(tf, BorderLayout.NORTH);f.add(p, ...
public class JiSuanQi{ public static void main(String[] args)throws Exception{ double d1 = 1.23; double d2 = 2.30; double sum = 0.0; char ch = '+'; switch(ch){ case '+': sum = d1 + d2; break; case '-': sum = d1 - d2;...