Question

4*4对称矩阵a按下三角压缩存储在数组b中,元素a[2][3]的地址为

急求

Answer 1

public class Utils {
private static long lastClickTime;
public static boolean isFastDoubleClick() {
long time = System.currentTimeMillis();
long timeD = time - lastClickTime;
if ( 0 < timeD && timeD < 500) {
return true;
}