Data commit

Task/Read-a-file-line-by-line/Java/read-a-file-line-by-line-1.java

@@ -0,0 +1,39 @@
+import java.io.BufferedReader;
+import java.io.FileReader;
+
+/**
+ * Reads a file line by line, processing each line.
+ *
+ * @author  $Author$
+ * @version $Revision$
+ */
+public class ReadFileByLines {
+    private static void processLine(int lineNo, String line) {
+        // ...
+    }
+
+    public static void main(String[] args) {
+        for (String filename : args) {
+            BufferedReader br = null;
+            FileReader fr = null;
+            try {
+                fr = new FileReader(filename);
+                br = new BufferedReader(fr);
+                String line;
+                int lineNo = 0;
+                while ((line = br.readLine()) != null) {
+                    processLine(++lineNo, line);
+                }
+            }
+            catch (Exception x) {
+                x.printStackTrace();
+            }
+            finally {
+                if (fr != null) {
+                    try {br.close();} catch (Exception ignoreMe) {}
+                    try {fr.close();} catch (Exception ignoreMe) {}
+                }
+            }
+        }
+    }
+}

Task/Read-a-file-line-by-line/Java/read-a-file-line-by-line-2.java

@@ -0,0 +1,12 @@
+for (String filename : args) {
+    try (FileReader fr = new FileReader(filename);BufferedReader br = new BufferedReader(fr)){
+        String line;
+        int lineNo = 0;
+        while ((line = br.readLine()) != null) {
+            processLine(++lineNo, line);
+        }
+    }
+    catch (Exception x) {
+        x.printStackTrace();
+    }
+}

Task/Read-a-file-line-by-line/Java/read-a-file-line-by-line-3.java

@@ -0,0 +1,11 @@
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.nio.charset.Charset;
+import java.io.IOException;
+//...other class code
+List<String> lines = null;
+try{
+    lines = Files.readAllLines(Paths.get(filename), Charset.defaultCharset());
+}catch(IOException | SecurityException e){
+    //problem with the file
+}