如何从具有特定字符串android的Firebase中接收数据?

My data structure looks like:

我的数据结构如下:

Database
 Data1 { 
   Family: "Adam, John, Smith, Bob, Alice"
   Age: "12, 23, 6, 5, 8"
   Area: "GT6, GT9, GT12"
}

 Data2 { 
   Family: "Tom, Ben, Berry, Hosh, Nico"
   Age: "68, 43, 26, 15, 18"
   Area: "67D, HG6, DHJD, 453"
}
 Data3 { 
   Family: "Alice, Karan, faser, jenny, kietty"
   Age: "14, 10, 15, 17, 5"
   Area: "HG6, 67D, DHJD"
}
Dat