test_combinations.java running 

Combinations, 3 integers taken 2 at a time
given 1 2 3
1 2
1 3
2 3
 
Combinations, 4 doubles taken 3 at a time
given 1.0 2.0 3.0 4.0
1.0 2.0 3.0
1.0 2.0 4.0
1.0 3.0 4.0
2.0 3.0 4.0
 
Combinations,  5 characters taken 2 at a time
given a b c d e
a b
a c
a d
a e
b c
b d
b e
c d
c e
d e
 
All combination of 5 things
given things: 1 2 3 4 5
1  
2  
3  
4  
5  
1 2  
1 3  
1 4  
1 5  
2 3  
2 4  
2 5  
3 4  
3 5  
4 5  
1 2 3  
1 2 4  
1 2 5  
1 3 4  
1 3 5  
1 4 5  
2 3 4  
2 3 5  
2 4 5  
3 4 5  
1 2 3 4  
1 2 3 5  
1 2 4 5  
1 3 4 5  
2 3 4 5  
1 2 3 4 5  
 
test_combinations.java finished