added Set Capital function

src/main/java/Vault.java

@@ -8,6 +8,7 @@ public class Vault implements VaultInterface {
 
     public boolean config;
     public int PWLength;
+    public boolean haveCapitals = false;
     InputStream inputS = System.in;
     OutputStream outputS = System.out;
 
@@ -73,4 +74,18 @@ public class Vault implements VaultInterface {
 
     }
 
+    public void setCapital() {
+        println("Should you PW have Capitals? Type in yes or no.");
+
+        Scanner scan = new Scanner(inputS);
+        String input = scan.nextLine();
+
+        if(input.equals("yes")){
+            haveCapitals = true;
+            println("Your PWs contain now capitals.");
+        }else if(input.equals("no")){
+            haveCapitals = false;
+            println("Your PWs don´t have capitals anymore.");
+        }
+    }
 }

src/test/java/VaultTest.java

@@ -102,6 +102,26 @@ public class VaultTest {
         assertTrue(outputStream.toString().startsWith("Set"));
     }
 
+    @Test
+    void setCapital() {
+        vlt.inputS = new ByteArrayInputStream("yes\n".getBytes(StandardCharsets.UTF_8));
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        vlt.outputS = outputStream;
+        vlt.setCapital();
+
+        assertTrue(outputStream.toString().startsWith("Should"));
+        assertTrue(vlt.haveCapitals = true);
+        assertTrue(outputStream.toString().contains("contain"));
+
+        vlt.inputS = new ByteArrayInputStream("no\n".getBytes(StandardCharsets.UTF_8));
+        vlt.outputS = outputStream;
+        vlt.setCapital();
+
+        assertTrue(outputStream.toString().startsWith("Should"));
+        assertFalse(vlt.haveCapitals = false);
+        assertTrue(outputStream.toString().contains("don´t"));
+    }
+
     private ByteArrayInputStream getEmptyStringInputStream() {
         return new ByteArrayInputStream("".getBytes(StandardCharsets.UTF_8));
     }