diff --git a/java-learning/resource/output.txt b/java-learning/resource/output.txt index c5352b0..988cecb 100644 --- a/java-learning/resource/output.txt +++ b/java-learning/resource/output.txt @@ -1 +1,5 @@ -RX-78-2,1,2016/08/20 \ No newline at end of file +AAA +BBB +CCC +DDD +EEE diff --git a/java-learning/resource/output.txt b/java-learning/resource/output.txt index c5352b0..988cecb 100644 --- a/java-learning/resource/output.txt +++ b/java-learning/resource/output.txt @@ -1 +1,5 @@ -RX-78-2,1,2016/08/20 \ No newline at end of file +AAA +BBB +CCC +DDD +EEE diff --git a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java index 5972d51..51e64d6 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java +++ b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java @@ -4,7 +4,7 @@ public static void main(String[] args) throws Exception { try { - System.out.println(5/0); + System.out.println(5 / 0); } catch (ArithmeticException e) { throw new Exception(e); } diff --git a/java-learning/resource/output.txt b/java-learning/resource/output.txt index c5352b0..988cecb 100644 --- a/java-learning/resource/output.txt +++ b/java-learning/resource/output.txt @@ -1 +1,5 @@ -RX-78-2,1,2016/08/20 \ No newline at end of file +AAA +BBB +CCC +DDD +EEE diff --git a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java index 5972d51..51e64d6 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java +++ b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java @@ -4,7 +4,7 @@ public static void main(String[] args) throws Exception { try { - System.out.println(5/0); + System.out.println(5 / 0); } catch (ArithmeticException e) { throw new Exception(e); } diff --git a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java index 3e7430d..f55a6d1 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java +++ b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java @@ -5,7 +5,7 @@ public static void main(String[] args) { try { System.out.println(Integer.valueOf(5).intValue() / Integer.valueOf(0).intValue()); - } catch (Exception e) { + } catch (NumberFormatException | ArithmeticException e) { System.out.println("例外が発生しました"); } } diff --git a/java-learning/resource/output.txt b/java-learning/resource/output.txt index c5352b0..988cecb 100644 --- a/java-learning/resource/output.txt +++ b/java-learning/resource/output.txt @@ -1 +1,5 @@ -RX-78-2,1,2016/08/20 \ No newline at end of file +AAA +BBB +CCC +DDD +EEE diff --git a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java index 5972d51..51e64d6 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java +++ b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java @@ -4,7 +4,7 @@ public static void main(String[] args) throws Exception { try { - System.out.println(5/0); + System.out.println(5 / 0); } catch (ArithmeticException e) { throw new Exception(e); } diff --git a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java index 3e7430d..f55a6d1 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java +++ b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java @@ -5,7 +5,7 @@ public static void main(String[] args) { try { System.out.println(Integer.valueOf(5).intValue() / Integer.valueOf(0).intValue()); - } catch (Exception e) { + } catch (NumberFormatException | ArithmeticException e) { System.out.println("例外が発生しました"); } } diff --git a/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java b/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java index 1b2ee1d..2ef0ea3 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java +++ b/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java @@ -5,7 +5,7 @@ public static void main(String[] args) { try { System.out.println(Integer.valueOf(5).intValue() / Integer.valueOf(0).intValue()); - } catch (NumberFormatException | ArithmeticException e) { + } catch (Exception e) { System.out.println("例外が発生しました"); } } diff --git a/java-learning/resource/output.txt b/java-learning/resource/output.txt index c5352b0..988cecb 100644 --- a/java-learning/resource/output.txt +++ b/java-learning/resource/output.txt @@ -1 +1,5 @@ -RX-78-2,1,2016/08/20 \ No newline at end of file +AAA +BBB +CCC +DDD +EEE diff --git a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java index 5972d51..51e64d6 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java +++ b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java @@ -4,7 +4,7 @@ public static void main(String[] args) throws Exception { try { - System.out.println(5/0); + System.out.println(5 / 0); } catch (ArithmeticException e) { throw new Exception(e); } diff --git a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java index 3e7430d..f55a6d1 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java +++ b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java @@ -5,7 +5,7 @@ public static void main(String[] args) { try { System.out.println(Integer.valueOf(5).intValue() / Integer.valueOf(0).intValue()); - } catch (Exception e) { + } catch (NumberFormatException | ArithmeticException e) { System.out.println("例外が発生しました"); } } diff --git a/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java b/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java index 1b2ee1d..2ef0ea3 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java +++ b/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java @@ -5,7 +5,7 @@ public static void main(String[] args) { try { System.out.println(Integer.valueOf(5).intValue() / Integer.valueOf(0).intValue()); - } catch (NumberFormatException | ArithmeticException e) { + } catch (Exception e) { System.out.println("例外が発生しました"); } } diff --git a/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java b/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java index f6a4053..a375e9e 100644 --- a/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java +++ b/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java @@ -17,7 +17,7 @@ String[] datas = {"AAA", "BBB", "CCC", "DDD", "EEE"}; try { for (String data : datas) { - fileWriter.write(data); + fileWriter.write(data + "\n"); } } catch (IOException e) { e.printStackTrace(); diff --git a/java-learning/resource/output.txt b/java-learning/resource/output.txt index c5352b0..988cecb 100644 --- a/java-learning/resource/output.txt +++ b/java-learning/resource/output.txt @@ -1 +1,5 @@ -RX-78-2,1,2016/08/20 \ No newline at end of file +AAA +BBB +CCC +DDD +EEE diff --git a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java index 5972d51..51e64d6 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java +++ b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java @@ -4,7 +4,7 @@ public static void main(String[] args) throws Exception { try { - System.out.println(5/0); + System.out.println(5 / 0); } catch (ArithmeticException e) { throw new Exception(e); } diff --git a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java index 3e7430d..f55a6d1 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java +++ b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java @@ -5,7 +5,7 @@ public static void main(String[] args) { try { System.out.println(Integer.valueOf(5).intValue() / Integer.valueOf(0).intValue()); - } catch (Exception e) { + } catch (NumberFormatException | ArithmeticException e) { System.out.println("例外が発生しました"); } } diff --git a/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java b/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java index 1b2ee1d..2ef0ea3 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java +++ b/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java @@ -5,7 +5,7 @@ public static void main(String[] args) { try { System.out.println(Integer.valueOf(5).intValue() / Integer.valueOf(0).intValue()); - } catch (NumberFormatException | ArithmeticException e) { + } catch (Exception e) { System.out.println("例外が発生しました"); } } diff --git a/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java b/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java index f6a4053..a375e9e 100644 --- a/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java +++ b/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java @@ -17,7 +17,7 @@ String[] datas = {"AAA", "BBB", "CCC", "DDD", "EEE"}; try { for (String data : datas) { - fileWriter.write(data); + fileWriter.write(data + "\n"); } } catch (IOException e) { e.printStackTrace(); diff --git a/java-learning/src/jp/co/jid/listSample/ListSample.java b/java-learning/src/jp/co/jid/listSample/ListSample.java index b230d54..aa28883 100644 --- a/java-learning/src/jp/co/jid/listSample/ListSample.java +++ b/java-learning/src/jp/co/jid/listSample/ListSample.java @@ -16,13 +16,14 @@ containsSample(); addAllSample(); duplicationSample(); + loopListSample(); } private static void newSample() { System.out.println("-- newSample --"); ArrayList list = new ArrayList(); list.add("AAA"); - System.out.println(list.get(0)); + System.out.println(list.toString()); } private static void addSample() { @@ -97,8 +98,10 @@ ArrayList list = new ArrayList(); list.add("AAA"); list.add("BBB"); - list.add("CCC"); + String strC = new String("CCC"); + list.add(strC); System.out.println(list.indexOf("BBB")); + System.out.println(list.indexOf("CCC")); System.out.println(list.indexOf("XXX")); } @@ -107,8 +110,11 @@ ArrayList list = new ArrayList(); list.add("AAA"); list.add("BBB"); - list.add("CCC"); + String strC = new String("CCC"); + list.add(strC); System.out.println(list.contains("BBB")); + System.out.println(list.contains("CCC")); + System.out.println(list.contains("XXX")); } private static void addAllSample() { @@ -122,7 +128,6 @@ list2.add("222"); list2.add("333"); list1.addAll(list2); -// System.out.println(list1.toString()); for (String str : list1) { System.out.println(str); } @@ -138,4 +143,15 @@ list.add("AAA"); System.out.println(list.toString()); } + + private static void loopListSample() { + System.out.println("-- loopListSample --"); + ArrayList list = new ArrayList(); + list.add("AAA"); + list.add("BBB"); + list.add("CCC"); + for (String str : list) { + System.out.println(str); + } + } } diff --git a/java-learning/resource/output.txt b/java-learning/resource/output.txt index c5352b0..988cecb 100644 --- a/java-learning/resource/output.txt +++ b/java-learning/resource/output.txt @@ -1 +1,5 @@ -RX-78-2,1,2016/08/20 \ No newline at end of file +AAA +BBB +CCC +DDD +EEE diff --git a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java index 5972d51..51e64d6 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java +++ b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java @@ -4,7 +4,7 @@ public static void main(String[] args) throws Exception { try { - System.out.println(5/0); + System.out.println(5 / 0); } catch (ArithmeticException e) { throw new Exception(e); } diff --git a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java index 3e7430d..f55a6d1 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java +++ b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java @@ -5,7 +5,7 @@ public static void main(String[] args) { try { System.out.println(Integer.valueOf(5).intValue() / Integer.valueOf(0).intValue()); - } catch (Exception e) { + } catch (NumberFormatException | ArithmeticException e) { System.out.println("例外が発生しました"); } } diff --git a/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java b/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java index 1b2ee1d..2ef0ea3 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java +++ b/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java @@ -5,7 +5,7 @@ public static void main(String[] args) { try { System.out.println(Integer.valueOf(5).intValue() / Integer.valueOf(0).intValue()); - } catch (NumberFormatException | ArithmeticException e) { + } catch (Exception e) { System.out.println("例外が発生しました"); } } diff --git a/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java b/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java index f6a4053..a375e9e 100644 --- a/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java +++ b/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java @@ -17,7 +17,7 @@ String[] datas = {"AAA", "BBB", "CCC", "DDD", "EEE"}; try { for (String data : datas) { - fileWriter.write(data); + fileWriter.write(data + "\n"); } } catch (IOException e) { e.printStackTrace(); diff --git a/java-learning/src/jp/co/jid/listSample/ListSample.java b/java-learning/src/jp/co/jid/listSample/ListSample.java index b230d54..aa28883 100644 --- a/java-learning/src/jp/co/jid/listSample/ListSample.java +++ b/java-learning/src/jp/co/jid/listSample/ListSample.java @@ -16,13 +16,14 @@ containsSample(); addAllSample(); duplicationSample(); + loopListSample(); } private static void newSample() { System.out.println("-- newSample --"); ArrayList list = new ArrayList(); list.add("AAA"); - System.out.println(list.get(0)); + System.out.println(list.toString()); } private static void addSample() { @@ -97,8 +98,10 @@ ArrayList list = new ArrayList(); list.add("AAA"); list.add("BBB"); - list.add("CCC"); + String strC = new String("CCC"); + list.add(strC); System.out.println(list.indexOf("BBB")); + System.out.println(list.indexOf("CCC")); System.out.println(list.indexOf("XXX")); } @@ -107,8 +110,11 @@ ArrayList list = new ArrayList(); list.add("AAA"); list.add("BBB"); - list.add("CCC"); + String strC = new String("CCC"); + list.add(strC); System.out.println(list.contains("BBB")); + System.out.println(list.contains("CCC")); + System.out.println(list.contains("XXX")); } private static void addAllSample() { @@ -122,7 +128,6 @@ list2.add("222"); list2.add("333"); list1.addAll(list2); -// System.out.println(list1.toString()); for (String str : list1) { System.out.println(str); } @@ -138,4 +143,15 @@ list.add("AAA"); System.out.println(list.toString()); } + + private static void loopListSample() { + System.out.println("-- loopListSample --"); + ArrayList list = new ArrayList(); + list.add("AAA"); + list.add("BBB"); + list.add("CCC"); + for (String str : list) { + System.out.println(str); + } + } } diff --git a/java-learning/src/jp/co/jid/mapSample/MapSample.java b/java-learning/src/jp/co/jid/mapSample/MapSample.java index d526759..c36f722 100644 --- a/java-learning/src/jp/co/jid/mapSample/MapSample.java +++ b/java-learning/src/jp/co/jid/mapSample/MapSample.java @@ -19,6 +19,7 @@ containsValueSample(); keySetSample(); valuesSample(); + loopMapSample(); } private static void putSample() { @@ -143,4 +144,15 @@ System.out.println(list.toString()); } + private static void loopMapSample() { + System.out.println("--- loopMapSample ---"); + HashMap map = new HashMap(); + map.put(Integer.valueOf(1), "AAA"); + map.put(Integer.valueOf(2), "BBB"); + map.put(Integer.valueOf(3), "CCC"); + for (Integer key : map.keySet()) { + System.out.println(map.get(key)); + } + } + } diff --git a/java-learning/resource/output.txt b/java-learning/resource/output.txt index c5352b0..988cecb 100644 --- a/java-learning/resource/output.txt +++ b/java-learning/resource/output.txt @@ -1 +1,5 @@ -RX-78-2,1,2016/08/20 \ No newline at end of file +AAA +BBB +CCC +DDD +EEE diff --git a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java index 5972d51..51e64d6 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java +++ b/java-learning/src/jp/co/jid/exceptionSample/ExceptionRapping1.java @@ -4,7 +4,7 @@ public static void main(String[] args) throws Exception { try { - System.out.println(5/0); + System.out.println(5 / 0); } catch (ArithmeticException e) { throw new Exception(e); } diff --git a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java index 3e7430d..f55a6d1 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java +++ b/java-learning/src/jp/co/jid/exceptionSample/TryCatch3.java @@ -5,7 +5,7 @@ public static void main(String[] args) { try { System.out.println(Integer.valueOf(5).intValue() / Integer.valueOf(0).intValue()); - } catch (Exception e) { + } catch (NumberFormatException | ArithmeticException e) { System.out.println("例外が発生しました"); } } diff --git a/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java b/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java index 1b2ee1d..2ef0ea3 100644 --- a/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java +++ b/java-learning/src/jp/co/jid/exceptionSample/TryCatch4.java @@ -5,7 +5,7 @@ public static void main(String[] args) { try { System.out.println(Integer.valueOf(5).intValue() / Integer.valueOf(0).intValue()); - } catch (NumberFormatException | ArithmeticException e) { + } catch (Exception e) { System.out.println("例外が発生しました"); } } diff --git a/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java b/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java index f6a4053..a375e9e 100644 --- a/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java +++ b/java-learning/src/jp/co/jid/fileIO/FileWriteSample.java @@ -17,7 +17,7 @@ String[] datas = {"AAA", "BBB", "CCC", "DDD", "EEE"}; try { for (String data : datas) { - fileWriter.write(data); + fileWriter.write(data + "\n"); } } catch (IOException e) { e.printStackTrace(); diff --git a/java-learning/src/jp/co/jid/listSample/ListSample.java b/java-learning/src/jp/co/jid/listSample/ListSample.java index b230d54..aa28883 100644 --- a/java-learning/src/jp/co/jid/listSample/ListSample.java +++ b/java-learning/src/jp/co/jid/listSample/ListSample.java @@ -16,13 +16,14 @@ containsSample(); addAllSample(); duplicationSample(); + loopListSample(); } private static void newSample() { System.out.println("-- newSample --"); ArrayList list = new ArrayList(); list.add("AAA"); - System.out.println(list.get(0)); + System.out.println(list.toString()); } private static void addSample() { @@ -97,8 +98,10 @@ ArrayList list = new ArrayList(); list.add("AAA"); list.add("BBB"); - list.add("CCC"); + String strC = new String("CCC"); + list.add(strC); System.out.println(list.indexOf("BBB")); + System.out.println(list.indexOf("CCC")); System.out.println(list.indexOf("XXX")); } @@ -107,8 +110,11 @@ ArrayList list = new ArrayList(); list.add("AAA"); list.add("BBB"); - list.add("CCC"); + String strC = new String("CCC"); + list.add(strC); System.out.println(list.contains("BBB")); + System.out.println(list.contains("CCC")); + System.out.println(list.contains("XXX")); } private static void addAllSample() { @@ -122,7 +128,6 @@ list2.add("222"); list2.add("333"); list1.addAll(list2); -// System.out.println(list1.toString()); for (String str : list1) { System.out.println(str); } @@ -138,4 +143,15 @@ list.add("AAA"); System.out.println(list.toString()); } + + private static void loopListSample() { + System.out.println("-- loopListSample --"); + ArrayList list = new ArrayList(); + list.add("AAA"); + list.add("BBB"); + list.add("CCC"); + for (String str : list) { + System.out.println(str); + } + } } diff --git a/java-learning/src/jp/co/jid/mapSample/MapSample.java b/java-learning/src/jp/co/jid/mapSample/MapSample.java index d526759..c36f722 100644 --- a/java-learning/src/jp/co/jid/mapSample/MapSample.java +++ b/java-learning/src/jp/co/jid/mapSample/MapSample.java @@ -19,6 +19,7 @@ containsValueSample(); keySetSample(); valuesSample(); + loopMapSample(); } private static void putSample() { @@ -143,4 +144,15 @@ System.out.println(list.toString()); } + private static void loopMapSample() { + System.out.println("--- loopMapSample ---"); + HashMap map = new HashMap(); + map.put(Integer.valueOf(1), "AAA"); + map.put(Integer.valueOf(2), "BBB"); + map.put(Integer.valueOf(3), "CCC"); + for (Integer key : map.keySet()) { + System.out.println(map.get(key)); + } + } + } diff --git a/java-learning/src/jp/co/jid/setSample/SetSample.java b/java-learning/src/jp/co/jid/setSample/SetSample.java index acb5a7e..9120b82 100644 --- a/java-learning/src/jp/co/jid/setSample/SetSample.java +++ b/java-learning/src/jp/co/jid/setSample/SetSample.java @@ -10,9 +10,10 @@ addSample(); clearSample(); removeSample(); - setSample(); + sizeSample(); isEmptySample(); containsSample(); + loopSetSample(); } private static void newSample() { @@ -59,7 +60,7 @@ System.out.println("setの要素は" + set.toString()); } - private static void setSample() { + private static void sizeSample() { System.out.println("-- setSample --"); HashSet set = new HashSet(); System.out.println("setの要素数は" + set.size()); @@ -95,4 +96,15 @@ System.out.println(set.contains("BBB")); System.out.println(set.contains("123")); } + + private static void loopSetSample() { + System.out.println("-- loopSetSample --"); + HashSet set = new HashSet(); + set.add("AAA"); + set.add("BBB"); + set.add("CCC"); + for (String str : set) { + System.out.println(str); + } + } }