test.java

用hashmap实现查找,存储等功能 定义了一个接口,并用稀疏矩阵实现

package shuli;

import java.util.Vector;

public class Test {
	public static void main(String[] args) {
		Matrix m = new SparseMatrix(4, 4);
		m.put(0, 0, new Integer(1));
		m.put(1, 1, new Integer(2));
		m.put(2, 2, new Integer(3));
		m.put(3, 3, new Integer(4));
		System.out.print("M=\n" + m.toString("0"));

		Vector v = new Vector() ;		
		v.add(new Integer(4));		
		v.add(new Integer(2));	
		v.add(new Integer(3));
		v.add(new Integer(6));

		System.out.println("v=" + v);
		System.out.println("M*v="+m.multiply(v));
	}
}