将Python中的Scala与JPype一起使用
我有一个通过JPype从Python调用Java程序的系统。我想将Java代码切换到Scala。例如,我有:将Python中的Scala与JPype一起使用,scala,scala-java-interop,jpype,Scala,Scala Java Interop,Jpype,我有一个通过JPype从Python调用Java程序的系统。我想将Java代码切换到Scala。例如,我有: package jnets; class JVector{ double [] x; public JVector(double[] vec){ this.x = vec; } public double[] plus(double[] y){ assert (x.length==y.length); do
package jnets;
class JVector{
double [] x;
public JVector(double[] vec){
this.x = vec;
}
public double[] plus(double[] y){
assert (x.length==y.length);
double[] z = new double[x.length];
for (int i=0; i<x.length; i++)
z[i] = x[i]+y[i];
return z;
}
}
现在,我尝试在Scala中执行同样的操作:
package jnets;
class SVector(xi: Array[Double]){
var x = xi
def plus(y: Array[Double]): Array[Double] = {
assert(x.length==y.length)
val z = Array[Double](x.length)
for (i <- 0 until x.length)
z(i) = x(i)+y(i)
return z
}
}
怎么了?如果我javap JVector.class
我得到:
class jnets.JVector {
double[] x;
static final boolean $assertionsDisabled;
public jnets.JVector(double[]);
public double[] plus(double[]);
static {};
}
如果我做了javap SVector.class
,我会得到:
public class jnets.SVector {
public double[] x();
public void x_$eq(double[]);
public double[] plus(double[]);
public jnets.SVector();
public jnets.SVector(double[]);
}
所以。。。。我猜这与这个static{}有关代码>行,但无法确定如何使scalac使.class文件与Java文件相同
有什么想法吗?尝试使用@BeanProperty作为输入参数,请参见“谢谢”。我试过了,但没用,看到了吗
class jnets.JVector {
double[] x;
static final boolean $assertionsDisabled;
public jnets.JVector(double[]);
public double[] plus(double[]);
static {};
}
public class jnets.SVector {
public double[] x();
public void x_$eq(double[]);
public double[] plus(double[]);
public jnets.SVector();
public jnets.SVector(double[]);
}