我想从可执行文件调用Java代码。我的Java代码如下:Java:错误:无法找到或加载主类
CostCalculatorType.java:
public interface CostCalculatorType {
public double calculateCost(double[] chromosome);
}
Main.java:
import org.plyjy.factory.JythonObjectFactory;
public class Main {
public static void main(String[] args) {
double[] a = new double[]{1.3653333, 0.0000000, -1.8204444, -1.8204444};
double result;
JythonObjectFactory factory = JythonObjectFactory.getInstance();
CostCalculatorType costCalc = (CostCalculatorType)
factory.createObject(CostCalculatorType.class, "CostCalculator");
result = costCalc.calculateCost(a);
System.out.println("Result = "+result);
}
}
当我运行下面的命令,我得到所需的输出:
javac -cp ".:/home/ch/PlyJy.jar:/home/ch/jython.jar" CostCalculatorType.java Main.java
java -cp ".:/home/ch/PlyJy.jar:/home/ch/jython.jar" CostCalculatorType.java Main
Result = 3324.260315871956
但是,当我设置类路径并运行以下命令时,出现错误。
export CLASSPATH=/home/ch/jython.jar:$CLASSPATH
export CLASSPATH=/home/ch/PlyJy.jar:$CLASSPATH
javac CostCalculatorType.java Main.java
java Main
Error: Could not find or load main class Main
我希望能够做到这一点,而无需使用-cp选项,因为,我要脱掉的主要方法,它移动到不同的方法,从不同的程序中调用它。如何在不使用-cp选项的情况下获得所需的输出?
工作。谢谢 :) –