1 files changed, 81 insertions, 0 deletions
diff --git a/src/algorithmus/Case.java b/src/algorithmus/Case.java
new file mode 100755
index 0000000..06e35d6
--- /dev/null
+++ b/src/algorithmus/Case.java
@@ -0,0 +1,81 @@
+package algorithmus;
+
+import java.awt.Checkbox;
+import java.awt.CheckboxGroup;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+import java.io.UnsupportedEncodingException;
+
+import javax.swing.JButton;
+import javax.swing.JFrame;
+
+public class Case extends Algorithmus {
+	
+	private String name = "Case";
+	private boolean low = true;
+	
+	public String getName() {
+		return name;
+	}
+	
+	public void options() {
+		JFrame frame = new JFrame();
+		frame.setLayout(null);
+		frame.setTitle("Case");
+		frame.setSize(100, 100);
+		frame.setResizable(false);
+		Checkbox cb = new Checkbox("To Lowercase");
+		cb.setBounds(5, 5, 100, 20);
+		JButton apply = new JButton("Apply");
+		apply.setBounds(5, 30, 75, 20);
+		apply.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				low = cb.getState();
+			}
+		});
+		frame.add(cb);
+		frame.add(apply);
+		frame.setVisible(true);
+	}
+
+	public String encode(String input) {
+		try {
+			if(low)
+				return new String(lower(input.getBytes("US-ASCII")), "US-ASCII");
+			else
+				return new String(upper(input.getBytes("US-ASCII")), "US-ASCII");
+		} catch (UnsupportedEncodingException e) {
+			e.printStackTrace();
+			return "Error";
+		}
+	}
+
+	public String decode(String input) {
+		try {
+			if(low)
+				return new String(upper(input.getBytes("US-ASCII")), "US-ASCII");
+			else
+				return new String(lower(input.getBytes("US-ASCII")), "US-ASCII");
+		} catch (UnsupportedEncodingException e) {
+			e.printStackTrace();
+			return "Error";
+		}
+	}
+	
+	private byte[] upper(byte[] ba) {
+		for(int i = 0; i<ba.length; i++)
+			if(ba[i] > 96 && ba[i] < 123)
+				ba[i] -= 32;
+		return ba;
+	}
+	
+	private byte[] lower(byte[] ba) {
+		for(int i = 0; i<ba.length; i++)
+			if(ba[i] > 64 && ba[i] < 91)
+				ba[i] += 32;
+		return ba;
+	}
+
+}