35 lines
1.3 KiB
Java
35 lines
1.3 KiB
Java
package com.google.ortools;
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import com.google.ortools.Loader;
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import com.google.ortools.linearsolver.MPConstraint;
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import com.google.ortools.linearsolver.MPObjective;
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import com.google.ortools.linearsolver.MPSolver;
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import com.google.ortools.linearsolver.MPVariable;
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import org.junit.jupiter.api.Test;
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/** @author Mizux */
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public class Test {
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@Test
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public void testLP() {
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Loader.loadNativeLibraries();
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MPSolver solver =
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new MPSolver("SimpleLpProgram", MPSolver.OptimizationProblemType.GLOP_LINEAR_PROGRAMMING);
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MPVariable x = solver.makeNumVar(0.0, 1.0, "x");
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MPVariable y = solver.makeNumVar(0.0, 2.0, "y");
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System.out.println("Number of variables = " + solver.numVariables());
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MPConstraint ct = solver.makeConstraint(0.0, 2.0, "ct");
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ct.setCoefficient(x, 1);
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ct.setCoefficient(y, 1);
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System.out.println("Number of constraints = " + solver.numConstraints());
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MPObjective objective = solver.objective();
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objective.setCoefficient(x, 3);
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objective.setCoefficient(y, 1);
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objective.setMaximization();
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solver.solve();
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System.out.println("Solution:");
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System.out.println("Objective value = " + objective.value());
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System.out.println("x = " + x.solutionValue());
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System.out.println("y = " + y.solutionValue());
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}
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}
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