java data structure - stack java.util.Stack

To know array based stack implementation in java https://www.youtube.com/watch?v=i7SgAJHcx00&list=PLCo5R-N8HkagZZS5ucARrbZ9Et4umGBX_&index=5 To know resizable array based stack implementation in java https://www.youtube.com/watch?v=70wePMJiH2c&index=6&list=PLCo5R-N8HkagZZS5ucARrbZ9Et4umGBX_ please watch full playlist here https://www.youtube.com/watch?v=kFZXOA08xU8&list=PLCo5R-N8HkagZZS5ucARrbZ9Et4umGBX_ if you like my content then please like share and subscribe.