From c009693a07276f8d66cd68637431f0a3f0e9ef15 Mon Sep 17 00:00:00 2001
From: Julian T <julian@jtle.dk>
Date: Tue, 8 Sep 2020 13:43:21 +0200
Subject: Added more java assignments

---
 sem5/oop/m2/opg2/src/Lines.java         | 71 +++++++++++++++++++++++++++++++++
 sem5/oop/m2/opg2/src/LoadException.java | 16 ++++++++
 sem5/oop/m2/opg2/src/Main.java          | 23 +++++++++++
 3 files changed, 110 insertions(+)
 create mode 100644 sem5/oop/m2/opg2/src/Lines.java
 create mode 100644 sem5/oop/m2/opg2/src/LoadException.java
 create mode 100644 sem5/oop/m2/opg2/src/Main.java

(limited to 'sem5/oop/m2/opg2/src')

diff --git a/sem5/oop/m2/opg2/src/Lines.java b/sem5/oop/m2/opg2/src/Lines.java
new file mode 100644
index 0000000..ed1f420
--- /dev/null
+++ b/sem5/oop/m2/opg2/src/Lines.java
@@ -0,0 +1,71 @@
+import java.util.ArrayList;
+import java.io.IOException;
+import java.io.EOFException;
+import java.io.FileReader;
+import java.io.BufferedReader;
+import java.util.Scanner;
+import java.io.PrintStream;
+
+public class Lines {
+	
+	private ArrayList<int[]> lines;
+	
+	public Lines(String loadpath) throws IOException, LoadException {
+		this.lines = new ArrayList<int[]>();
+		FileReader f = null;
+		BufferedReader buff = null;
+		try {
+			f = new FileReader(loadpath);
+			buff = new BufferedReader(f);
+			
+			String line;
+			while((line = buff.readLine()) != null) {
+				this.readRow(line);
+			}
+			
+		} finally {
+			if (f != null) {
+				f.close();
+			}
+		}
+	}
+	
+	void readRow(String line) throws LoadException {
+		// you are a pirate
+		int[] arr = new int[10];
+		
+
+		int i;
+		Scanner sc = null;
+		try {
+			sc = new Scanner(line);
+			for (i = 0; i < 10; i++) {
+				if (!sc.hasNextInt()) {
+					break;
+				}
+				int n = sc.nextInt();
+				// OPG 3
+				if (n > 90) {
+					throw new LoadException(n, "is above 90");
+				}
+				// OPG 4
+				//a assert (n <= 90) : "is above 90";
+				arr[i] = n;
+			}
+		} finally {
+			sc.close();
+		}
+		if (i > 0) {
+			lines.add(arr);
+		}
+	}
+	
+	public void print(PrintStream out) {
+		for (int[] arr : this.lines) {
+			for (int i : arr) {
+				out.printf("%-3d ", i);
+			}
+			out.print(System.lineSeparator());
+		}
+	}
+}
diff --git a/sem5/oop/m2/opg2/src/LoadException.java b/sem5/oop/m2/opg2/src/LoadException.java
new file mode 100644
index 0000000..b6ea720
--- /dev/null
+++ b/sem5/oop/m2/opg2/src/LoadException.java
@@ -0,0 +1,16 @@
+
+public class LoadException extends Exception {
+	
+	private int value;
+	private String msg;
+	
+	public LoadException(int value, String msg) {
+		this.value = value;
+		this.msg = msg;
+	}
+	
+	public String getMessage() {
+		return String.format("Invalid value %d (%s)", this.value, this.msg);
+	}
+
+}
diff --git a/sem5/oop/m2/opg2/src/Main.java b/sem5/oop/m2/opg2/src/Main.java
new file mode 100644
index 0000000..532bc72
--- /dev/null
+++ b/sem5/oop/m2/opg2/src/Main.java
@@ -0,0 +1,23 @@
+
+public class Main {
+
+	public static void main(String[] args) {
+		System.out.println("Get ready for cool stuff.");
+		
+		String fname = "hej.txt";
+		if (args.length > 0) {
+			fname = args[0];
+		}
+		
+		Lines l = null;
+		try {
+			l = new Lines(fname);
+		} catch (Exception e) {
+			System.err.printf("error: %s%n", e);
+			System.exit(1);
+		}
+		
+		l.print(System.out);
+	}
+
+}
-- 
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