Replaced tabs by spaces

libraries/src/main/java/com/baeldung/hikaricp/DataSource.java

@@ -10,36 +10,36 @@ import com.zaxxer.hikari.HikariDataSource;
 
 public class DataSource {
 
-	private static HikariConfig config = new HikariConfig();
-	private static HikariDataSource ds;
+    private static HikariConfig config = new HikariConfig();
+    private static HikariDataSource ds;
 
-	static {
-//		config = new HikariConfig("datasource.properties");
-		
-//		Properties props = new Properties();
-//		props.setProperty("dataSourceClassName", "org.h2.Driver");
-//		props.setProperty("dataSource.user", "");
-//		props.setProperty("dataSource.password", "");
-//		props.put("dataSource.logWriter", new PrintWriter(System.out));
-//		config = new HikariConfig(props);
-		
-		config.setJdbcUrl("jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;INIT=runscript from 'classpath:/db.sql'");
-		config.setUsername("");
-		config.setPassword("");
-		config.addDataSourceProperty("cachePrepStmts", "true");
-		config.addDataSourceProperty("prepStmtCacheSize", "250");
-		config.addDataSourceProperty("prepStmtCacheSqlLimit", "2048");
-		ds = new HikariDataSource(config);
-		
-//		ds.setJdbcUrl("jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;INIT=runscript from 'classpath:/db.sql'");
-//		ds.setUsername("");
-//		ds.setPassword("");
-	}
+    static {
+//        config = new HikariConfig("datasource.properties");
+        
+//        Properties props = new Properties();
+//        props.setProperty("dataSourceClassName", "org.h2.Driver");
+//        props.setProperty("dataSource.user", "");
+//        props.setProperty("dataSource.password", "");
+//        props.put("dataSource.logWriter", new PrintWriter(System.out));
+//        config = new HikariConfig(props);
+        
+        config.setJdbcUrl("jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;INIT=runscript from 'classpath:/db.sql'");
+        config.setUsername("");
+        config.setPassword("");
+        config.addDataSourceProperty("cachePrepStmts", "true");
+        config.addDataSourceProperty("prepStmtCacheSize", "250");
+        config.addDataSourceProperty("prepStmtCacheSqlLimit", "2048");
+        ds = new HikariDataSource(config);
+        
+//        ds.setJdbcUrl("jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;INIT=runscript from 'classpath:/db.sql'");
+//        ds.setUsername("");
+//        ds.setPassword("");
+    }
 
-	private DataSource() {}
+    private DataSource() {}
 
-	public static Connection getConnection() throws SQLException {
-		return ds.getConnection();
-	}
+    public static Connection getConnection() throws SQLException {
+        return ds.getConnection();
+    }
 
-}
+}

libraries/src/main/java/com/baeldung/hikaricp/HikariCPDemo.java

@@ -9,34 +9,34 @@ import java.util.List;
 
 public class HikariCPDemo {
 
-	public static List<Employee> fetchData() {
-		final String SQL_QUERY = "select * from emp";
-		List<Employee> employees = null;
-		try (Connection con = DataSource.getConnection();
-				PreparedStatement pst = con.prepareStatement(SQL_QUERY);
-				ResultSet rs = pst.executeQuery();) {
-			employees = new ArrayList<Employee>();
-			Employee employee;
-			while (rs.next()) {
-				employee = new Employee();
-				employee.setEmpNo(rs.getInt("empno"));
-				employee.setEname(rs.getString("ename"));
-				employee.setJob(rs.getString("job"));
-				employee.setMgr(rs.getInt("mgr"));
-				employee.setHiredate(rs.getDate("hiredate"));
-				employee.setSal(rs.getInt("sal"));
-				employee.setComm(rs.getInt("comm"));
-				employee.setDeptno(rs.getInt("deptno"));
-				employees.add(employee);
-			}
-		} catch (SQLException e) {
-			e.printStackTrace();
-		}
-		return employees;
-	}
+    public static List<Employee> fetchData() {
+        final String SQL_QUERY = "select * from emp";
+        List<Employee> employees = null;
+        try (Connection con = DataSource.getConnection();
+                PreparedStatement pst = con.prepareStatement(SQL_QUERY);
+                ResultSet rs = pst.executeQuery();) {
+            employees = new ArrayList<Employee>();
+            Employee employee;
+            while (rs.next()) {
+                employee = new Employee();
+                employee.setEmpNo(rs.getInt("empno"));
+                employee.setEname(rs.getString("ename"));
+                employee.setJob(rs.getString("job"));
+                employee.setMgr(rs.getInt("mgr"));
+                employee.setHiredate(rs.getDate("hiredate"));
+                employee.setSal(rs.getInt("sal"));
+                employee.setComm(rs.getInt("comm"));
+                employee.setDeptno(rs.getInt("deptno"));
+                employees.add(employee);
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return employees;
+    }
 
-	public static void main(String[] args) {
-		fetchData();
-	}
-	
-}
+    public static void main(String[] args) {
+        fetchData();
+    }
+    
+}