我有一个错误,我的数组返回所有相同的值,而我使用我在类中创建的print方法。我不知道为什么,它必须是不同的价值。有什么建议吗? 这是代码
主要课程:
public class KmeanES {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
Kmean coba= new Kmean();
coba.filldata();
coba.print()
}
}
Kmean班:
public class Kmean {
double[][] datadummy = {{15.26, 14.84, 0.871}, {5.763, 3.312, 2.221},
{14.88, 14.57, 0.881}, {5.554, 3.333, 1.018}, {4.956, 114.29, 14.09},
{0.905, 5.291, 3.337}, {2.699, 4.825, 1}, {13.84, 13.94, 0.8955},
{5.324, 3.379, 2.259}, {4.805, 1, 16.14}, {14.99, 0.9034, 5.658}};
//11 dummy data
Kmeandata data = new Kmeandata();
Kmeandata[] datafinal = new Kmeandata[11];
void filldata() {
double[] temp = new double[3];
for (int i = 0; i < 11; i++) {
for (int j = 0; j < 3; j++) {
temp[j] = this.datadummy[i][j];
}
this.data.setData(temp);
this.datafinal[i]=this.data;
datafinal[i].printdata();
}
}
void print() {
for (int i = 0; i < 11; i++) {
this.datafinal[i].printdata();
}
}
}
和Kmeandata班
public class Kmeandata {
String kelas;
public double[] data = new double[3];
public Kmeandata(String kelas, double[] data) {
this.setKelas(kelas);
this.setData(data);
}
public Kmeandata(double[] data) {
this.setKelas(null);
this.setData(data);
}
public Kmeandata() {
this.setKelas(null);
this.setData(null);
}
public String getKelas() {
return kelas;
}
public void setKelas(String kelas) {
this.kelas = kelas;
}
public double[] getData() {
return data;
}
public void setData(double[] data) {
this.data = data;
}
public void printdata() {
double[] temp = new double[3];
temp = this.getData();
System.out.println("");
for (int i = 0; i < 3; i++) {
System.out.printf("|" + temp[i] + "|");
}
}
}
答案 0 :(得分:1)
您传入的是对临时数组的引用,而不是副本。在外部for循环中移动temp的定义。
for (int i = 0; i < 11; i++) {
double[] temp = new double[3];
for (int j = 0; j < 3; j++) {
temp[j] = this.datadummy[i][j];
}
...
}