Java Vector 是一個實現了可動態增長的數組的類,它具有線程安全的特性
import java.util.Vector;
Vector<Integer> vector1 = new Vector<>();
Vector<Integer> vector2 = new Vector<>();
vector1.add(1);
vector1.add(2);
vector1.add(3);
vector2.add(4);
vector2.add(5);
vector2.add(6);
int sum = 0;
for (int i = 0; i < vector1.size(); i++) {
sum += vector1.get(i);
}
System.out.println("Sum of vector1: " + sum);
double average = 0;
for (int i = 0; i < vector1.size(); i++) {
average += vector1.get(i);
}
average /= vector1.size();
System.out.println("Average of vector1: " + average);
Vector<Integer> resultVector = new Vector<>();
for (int i = 0; i < vector1.size(); i++) {
resultVector.add(vector1.get(i) + vector2.get(i));
}
System.out.println("Result of vector addition: " + resultVector);
Vector<Integer> resultVector = new Vector<>();
for (int i = 0; i < vector1.size(); i++) {
resultVector.add(vector1.get(i) - vector2.get(i));
}
System.out.println("Result of vector subtraction: " + resultVector);
int dotProduct = 0;
for (int i = 0; i < vector1.size(); i++) {
dotProduct += vector1.get(i) * vector2.get(i);
}
System.out.println("Dot product of vector1 and vector2: " + dotProduct);
int crossProduct = 0;
for (int i = 0; i < vector1.size(); i++) {
crossProduct += vector1.get(i) * vector2.get(i + 1) - vector1.get(i + 1) * vector2.get(i);
}
System.out.println("Cross product of vector1 and vector2: " + crossProduct);
注意:這里的向量運算僅適用于一維向量。對于更高維度的向量,你需要使用相應的數學庫(如Apache Commons Math)來進行向量運算。
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