package com.baeldung.netty; import java.io.Serializable; public class Operation implements Serializable { private Integer number1; private Integer number2; private String operator; public Operation(Integer number1, Integer number2, String operator) { this.number1 = number1; this.number2 = number2; this.operator = operator; } public Integer getNumber1() { return number1; } public void setNumber1(Integer number1) { this.number1 = number1; } public Integer getNumber2() { return number2; } public void setNumber2(Integer number2) { this.number2 = number2; } public String getOperator() { return operator; } public void setOperator(String operator) { this.operator = operator; } @Override public String toString() { return "Operation{" + "number1=" + number1 + ", number2=" + number2 + ", operator='" + operator + '\'' + '}'; } }