calculator.java

java培训专题

package com;

public class Calculator{
	private String first;
	private String operator;
	private String second;
	private double result;
	public String getFirst() {
		return first;
	}
	public void setFirst(String first) {
		this.first = first;
	}
	public String getOperator() {
		return operator;
	}
	public void setOperator(String operator) {
		this.operator = operator;
	}
	public double getResult() {
		return result;
	}
	public void setResult(double result) {
		this.result = result;
	}
	public String getSecond() {
		return second;
	}
	public void setSecond(String second) {
		this.second = second;
	}
	public void calculate(){
		double one=Double.parseDouble(first);
		double two=Double.parseDouble(second);
		try{
			if(operator.equals("+")) result=one+two;
			if(operator.equals("-")) result=one-two;
			if(operator.equals("*")) result=one*two;
			if(operator.equals("/")) result=one/two;
		}catch(Exception e){
			System.out.println(e);
		}
	}
}