diff --git a/java/sa/Makefile b/java/sa/Makefile
index 866451a..bd38e23 100644
--- a/java/sa/Makefile
+++ b/java/sa/Makefile
@@ -1,4 +1,4 @@
-SRC:=tsp-sa.java
+SRC:=TSP.java
 TEST_FILE:=a280.tsp
 
 include ../Rules.mk
\ No newline at end of file
diff --git a/java/sa/tsp-sa.java b/java/sa/TSP.java
similarity index 100%
rename from java/sa/tsp-sa.java
rename to java/sa/TSP.java
diff --git a/java/sa/a280.tsp b/java/sa/a280.tsp
new file mode 100644
index 0000000..18f70fa
--- /dev/null
+++ b/java/sa/a280.tsp
@@ -0,0 +1,287 @@
+NAME : a280
+COMMENT : drilling problem (Ludwig)
+TYPE : TSP
+DIMENSION: 280
+EDGE_WEIGHT_TYPE : EUC_2D
+NODE_COORD_SECTION
+  1 288 149
+  2 288 129
+  3 270 133
+  4 256 141
+  5 256 157
+  6 246 157
+  7 236 169
+  8 228 169
+  9 228 161
+ 10 220 169
+ 11 212 169
+ 12 204 169
+ 13 196 169
+ 14 188 169
+ 15 196 161
+ 16 188 145
+ 17 172 145
+ 18 164 145
+ 19 156 145
+ 20 148 145
+ 21 140 145
+ 22 148 169
+ 23 164 169
+ 24 172 169
+ 25 156 169
+ 26 140 169
+ 27 132 169
+ 28 124 169
+ 29 116 161
+ 30 104 153
+ 31 104 161
+ 32 104 169
+ 33  90 165
+ 34  80 157
+ 35  64 157
+ 36  64 165
+ 37  56 169
+ 38  56 161
+ 39  56 153
+ 40  56 145
+ 41  56 137
+ 42  56 129
+ 43  56 121
+ 44  40 121
+ 45  40 129
+ 46  40 137
+ 47  40 145
+ 48  40 153
+ 49  40 161
+ 50  40 169
+ 51  32 169
+ 52  32 161
+ 53  32 153
+ 54  32 145
+ 55  32 137
+ 56  32 129
+ 57  32 121
+ 58  32 113
+ 59  40 113
+ 60  56 113
+ 61  56 105
+ 62  48  99
+ 63  40  99
+ 64  32  97
+ 65  32  89
+ 66  24  89
+ 67  16  97
+ 68  16 109
+ 69   8 109
+ 70   8  97
+ 71   8  89
+ 72   8  81
+ 73   8  73
+ 74   8  65
+ 75   8  57
+ 76  16  57
+ 77   8  49
+ 78   8  41
+ 79  24  45
+ 80  32  41
+ 81  32  49
+ 82  32  57
+ 83  32  65
+ 84  32  73
+ 85  32  81
+ 86  40  83
+ 87  40  73
+ 88  40  63
+ 89  40  51
+ 90  44  43
+ 91  44  35
+ 92  44  27
+ 93  32  25
+ 94  24  25
+ 95  16  25
+ 96  16  17
+ 97  24  17
+ 98  32  17
+ 99  44  11
+100  56   9
+101  56  17
+102  56  25
+103  56  33
+104  56  41
+105  64  41
+106  72  41
+107  72  49
+108  56  49
+109  48  51
+110  56  57
+111  56  65
+112  48  63
+113  48  73
+114  56  73
+115  56  81
+116  48  83
+117  56  89
+118  56  97
+119 104  97
+120 104 105
+121 104 113
+122 104 121
+123 104 129
+124 104 137
+125 104 145
+126 116 145
+127 124 145
+128 132 145
+129 132 137
+130 140 137
+131 148 137
+132 156 137
+133 164 137
+134 172 125
+135 172 117
+136 172 109
+137 172 101
+138 172  93
+139 172  85
+140 180  85
+141 180  77
+142 180  69
+143 180  61
+144 180  53
+145 172  53
+146 172  61
+147 172  69
+148 172  77
+149 164  81
+150 148  85
+151 124  85
+152 124  93
+153 124 109
+154 124 125
+155 124 117
+156 124 101
+157 104  89
+158 104  81
+159 104  73
+160 104  65
+161 104  49
+162 104  41
+163 104  33
+164 104  25
+165 104  17
+166  92   9
+167  80   9
+168  72   9
+169  64  21
+170  72  25
+171  80  25
+172  80  25
+173  80  41
+174  88  49
+175 104  57
+176 124  69
+177 124  77
+178 132  81
+179 140  65
+180 132  61
+181 124  61
+182 124  53
+183 124  45
+184 124  37
+185 124  29
+186 132  21
+187 124  21
+188 120   9
+189 128   9
+190 136   9
+191 148   9
+192 162   9
+193 156  25
+194 172  21
+195 180  21
+196 180  29
+197 172  29
+198 172  37
+199 172  45
+200 180  45
+201 180  37
+202 188  41
+203 196  49
+204 204  57
+205 212  65
+206 220  73
+207 228  69
+208 228  77
+209 236  77
+210 236  69
+211 236  61
+212 228  61
+213 228  53
+214 236  53
+215 236  45
+216 228  45
+217 228  37
+218 236  37
+219 236  29
+220 228  29
+221 228  21
+222 236  21
+223 252  21
+224 260  29
+225 260  37
+226 260  45
+227 260  53
+228 260  61
+229 260  69
+230 260  77
+231 276  77
+232 276  69
+233 276  61
+234 276  53
+235 284  53
+236 284  61
+237 284  69
+238 284  77
+239 284  85
+240 284  93
+241 284 101
+242 288 109
+243 280 109
+244 276 101
+245 276  93
+246 276  85
+247 268  97
+248 260 109
+249 252 101
+250 260  93
+251 260  85
+252 236  85
+253 228  85
+254 228  93
+255 236  93
+256 236 101
+257 228 101
+258 228 109
+259 228 117
+260 228 125
+261 220 125
+262 212 117
+263 204 109
+264 196 101
+265 188  93
+266 180  93
+267 180 101
+268 180 109
+269 180 117
+270 180 125
+271 196 145
+272 204 145
+273 212 145
+274 220 145
+275 228 145
+276 236 145
+277 246 141
+278 252 125
+279 260 129
+280 280 133
+EOF
\ No newline at end of file