Added more java assignments

18 files changed, 317 insertions, 1 deletions

diff --git a/sem5/oop/m1/src/Main.java b/sem5/oop/m1/src/Main.java
index b7c1f42..3906cc6 100644
--- a/sem5/oop/m1/src/Main.java
+++ b/sem5/oop/m1/src/Main.java
@@ -4,7 +4,7 @@ public class Main {
 		Student std = new Student("Julian", (short)21, "Male", (long)123213213, "COMTEK");
 		Uniperson hej = std;
 		
-		hej.addGrade(0.32);
+		hej.addGrade(7);
 		hej.addGrade(12);
 		
 		System.out.printf("deg: %s, sem: %d, avg: %f\n", hej.getDeg(), hej.getSem(), hej.getGPA());
diff --git a/sem5/oop/m2/Opg1/.classpath b/sem5/oop/m2/Opg1/.classpath
new file mode 100644
index 0000000..adeb0a3
--- /dev/null
+++ b/sem5/oop/m2/Opg1/.classpath
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/sem5/oop/m2/Opg1/.gitignore b/sem5/oop/m2/Opg1/.gitignore
new file mode 100644
index 0000000..ae3c172
--- /dev/null
+++ b/sem5/oop/m2/Opg1/.gitignore
@@ -0,0 +1 @@
+/bin/
diff --git a/sem5/oop/m2/Opg1/.project b/sem5/oop/m2/Opg1/.project
new file mode 100644
index 0000000..1b0d3fd
--- /dev/null
+++ b/sem5/oop/m2/Opg1/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Opg1</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/sem5/oop/m2/Opg1/hej.txt b/sem5/oop/m2/Opg1/hej.txt
new file mode 100644
index 0000000..d8c6033
--- /dev/null
+++ b/sem5/oop/m2/Opg1/hej.txt
@@ -0,0 +1,10 @@
+1   2   3   4   5   6   7   8   9   10  
+11  12  13  14  15  16  17  18  19  20  
+21  22  23  24  25  26  27  28  29  30  
+31  32  33  34  35  36  37  38  39  40  
+41  42  43  44  45  46  47  48  49  50  
+51  52  53  54  55  56  57  58  59  60  
+61  62  63  64  65  66  67  68  69  70  
+71  72  73  74  75  76  77  78  79  80  
+81  82  83  84  85  86  87  88  89  90  
+91  92  93  94  95  96  97  98  99  100 
diff --git a/sem5/oop/m2/Opg1/src/Main.java b/sem5/oop/m2/Opg1/src/Main.java
new file mode 100644
index 0000000..179e678
--- /dev/null
+++ b/sem5/oop/m2/Opg1/src/Main.java
@@ -0,0 +1,38 @@
+import java.io.FileWriter;
+import java.io.IOException;
+
+public class Main {
+	
+	static void writeLines(String name) throws IOException{
+		FileWriter f = null;
+		try {
+			f = new FileWriter(name);
+
+			for (int i = 1; i <= 100; i++) {
+				f.write(String.format("%-3d ", i));
+				if (i % 10 == 0) {
+					f.write(System.lineSeparator());
+				}
+			}
+		} finally {
+			if (f != null) {
+				f.close();
+			}
+		}
+	}
+	
+	public static void main(String[] args) {
+		String name = "hej.txt";
+		if (args.length > 0) {
+			name = args[0];
+		}
+		
+		System.out.printf("Writing to %s%n", name);
+		try {
+			writeLines(name);
+		} catch(IOException e) {
+			System.err.printf("Failed with: %s%n", e);
+		}
+	}
+
+}
diff --git a/sem5/oop/m2/opg2/.classpath b/sem5/oop/m2/opg2/.classpath
new file mode 100644
index 0000000..fb50116
--- /dev/null
+++ b/sem5/oop/m2/opg2/.classpath
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/sem5/oop/m2/opg2/.gitignore b/sem5/oop/m2/opg2/.gitignore
new file mode 100644
index 0000000..ae3c172
--- /dev/null
+++ b/sem5/oop/m2/opg2/.gitignore
@@ -0,0 +1 @@
+/bin/
diff --git a/sem5/oop/m2/opg2/.project b/sem5/oop/m2/opg2/.project
new file mode 100644
index 0000000..291ee0d
--- /dev/null
+++ b/sem5/oop/m2/opg2/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>opg2</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/sem5/oop/m2/opg2/hej.txt b/sem5/oop/m2/opg2/hej.txt
new file mode 100644
index 0000000..d8c6033
--- /dev/null
+++ b/sem5/oop/m2/opg2/hej.txt
@@ -0,0 +1,10 @@
+1   2   3   4   5   6   7   8   9   10  
+11  12  13  14  15  16  17  18  19  20  
+21  22  23  24  25  26  27  28  29  30  
+31  32  33  34  35  36  37  38  39  40  
+41  42  43  44  45  46  47  48  49  50  
+51  52  53  54  55  56  57  58  59  60  
+61  62  63  64  65  66  67  68  69  70  
+71  72  73  74  75  76  77  78  79  80  
+81  82  83  84  85  86  87  88  89  90  
+91  92  93  94  95  96  97  98  99  100 
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);
+	}
+
+}
diff --git a/sem5/oop/m2/primes/.classpath b/sem5/oop/m2/primes/.classpath
new file mode 100644
index 0000000..fb50116
--- /dev/null
+++ b/sem5/oop/m2/primes/.classpath
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/sem5/oop/m2/primes/.gitignore b/sem5/oop/m2/primes/.gitignore
new file mode 100644
index 0000000..ae3c172
--- /dev/null
+++ b/sem5/oop/m2/primes/.gitignore
@@ -0,0 +1 @@
+/bin/
diff --git a/sem5/oop/m2/primes/.project b/sem5/oop/m2/primes/.project
new file mode 100644
index 0000000..b2abcc1
--- /dev/null
+++ b/sem5/oop/m2/primes/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>primes</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/sem5/oop/m2/primes/src/Main.java b/sem5/oop/m2/primes/src/Main.java
new file mode 100644
index 0000000..e191835
--- /dev/null
+++ b/sem5/oop/m2/primes/src/Main.java
@@ -0,0 +1,32 @@
+
+public class Main {
+
+	public static void main(String[] args) {
+		System.out.println("Lets find some primes!!");
+		
+		int runto = 10000;
+		if (args.length > 0) {
+			runto = Integer.parseInt(args[0]);
+		}
+		
+		// Calculate length of runto as string
+		int numlen = String.valueOf(runto).length();
+		
+		PrimeGen pg = new PrimeGen();
+		
+		int p;
+		int index = 1;
+		while ((p = pg.next(runto)) != -1) {
+			// Terrible two level format
+			System.out.printf(String.format("%%-%dd ", numlen), p);
+			if (index % 10 == 0) {
+				System.out.print(System.lineSeparator());
+			}
+			index++;
+		}
+		System.out.print(System.lineSeparator());
+		System.out.printf("Found %d primes%n", index-1);
+
+	}
+
+}
diff --git a/sem5/oop/m2/primes/src/PrimeGen.java b/sem5/oop/m2/primes/src/PrimeGen.java
new file mode 100644
index 0000000..9c91645
--- /dev/null
+++ b/sem5/oop/m2/primes/src/PrimeGen.java
@@ -0,0 +1,40 @@
+import java.io.PrintStream;
+import java.util.ArrayList;
+
+public class PrimeGen {
+	
+	private ArrayList<Integer> primes;
+	private int at;
+
+	public PrimeGen() {
+		this.primes = new ArrayList<>();
+		
+		this.at = 1;
+	}
+	
+	public int next(int limit) {
+		// Run until a prime
+		primeloop:
+		while (true) {
+			this.at++;
+			if (this.at >= limit) {
+				return -1;
+			}
+
+			for (int prime : this.primes) {
+				if (this.at % prime == 0) {
+					continue primeloop;
+				}
+			}
+			break;
+		}
+	
+		this.primes.add(at);
+		return at;
+	}
+	
+	public int next() {
+		return next(-1);
+	}
+	
+}