使用cplex在java中定义二元决策变量

import ilog.concert.*;
import ilog.cplex.*;

public class CplexExample {
    public static void main(String[] args) {
        try {
            // 创建CPLEX环境
            IloCplex cplex = new IloCplex();

            // 创建模型
            IloModel model = cplex.getModel();

            // 定义决策变量
            IloIntVar x = cplex.boolVar("x");
            IloIntVar y = cplex.boolVar("y");

            // 设置目标函数
            IloLinearNumExpr objective = cplex.linearNumExpr();
            objective.addTerm(1, x);
            objective.addTerm(2, y);
            cplex.addMinimize(objective);

            // 添加约束条件
            IloLinearNumExpr constraint = cplex.linearNumExpr();
            constraint.addTerm(1, x);
            constraint.addTerm(2, y);
            cplex.addGe(constraint, 3);

            // 求解优化问题
            if (cplex.solve()) {
                // 获取结果
                double objValue = cplex.getObjValue();
                double xValue = cplex.getValue(x);
                double yValue = cplex.getValue(y);

                System.out.println("Objective value: " + objValue);
                System.out.println("x value: " + xValue);
                System.out.println("y value: " + yValue);
            } else {
                System.out.println("No solution found");
            }

            // 释放资源
            cplex.end();
        } catch (IloException e) {
            e.printStackTrace();
        }
    }
}