Java sort based on two columns

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Lets say I have table like this:

 String | Int1 | Int2
 "foo"    5      0
 "faa"    4      1
 "zaa"    0      1
 "zoo"    4      2
 "laa"    4      3
 "loo"    1      4

What I would like to get is table like this:

 String | Int1 | Int2
 "foo"    5      0
 "laa"    4      3
 "zoo"    4      2
 "faa"    4      1
 "loo"    1      4
 "zaa"    0      1

First thing that happens is sort based on column Int1.

Second thing that happens is sort of based on column Int2 but only on rows that have same numbers in column Int1

How should I approach this problem without using any database engine?

7 Answers
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