import java.applet.*; import java.awt.*; import java.lang.*; public class Numbers extends Applet { public void init() { // Default settings for the frame. setBackground(Color.gray); setForeground(Color.white); setFont(new Font("Courier", Font.PLAIN, 20)); // The way we are going to place items on the Frame. GridBagLayout gb = new GridBagLayout(); GridBagConstraints cgb = new GridBagConstraints(); setLayout(gb); // Create an Item. TextArea Text = new TextArea(" Dec Hex Oct Binary ASCII\n" ,10 ,30); String Padding = " "; String DecStr = " "; String HexStr = " "; String OctStr = " "; String BinStr = " "; String AsciiStr = " "; for (long Count=0; Count <= 255; Count++) { DecStr = DecStr.valueOf(Count); DecStr = Padd(DecStr, 4); HexStr = Long.toString(Count, 16); HexStr = Padd(HexStr, 4); OctStr = Long.toString(Count, 8); OctStr = Padd(OctStr, 4); BinStr = Long.toString(Count, 2); BinStr = Padd(BinStr, 9); AsciiStr = AsciiStr(Count); AsciiStr = Padd(AsciiStr, 2); Text.appendText( DecStr + HexStr + OctStr + BinStr + AsciiStr + "\n"); } Text.setForeground(Color.black); Text.setBackground(Color.white); Text.setEditable(false); // Set the constraints. cgb.gridwidth = 100; gb.setConstraints(Text, cgb); // And place it on the Frame. add(Text); } // Override paint method so it draws a rectange around the Frame public void paint(Graphics g) { // Get the panels dimentions. Rectangle r = bounds(); // top left, length across, length down. g.drawRect(0, 0, r.width-1, r.height-1); g.drawRect(5, 5, r.width-11, r.height-11); } public String Padd(String Str, int Size) { String Padding = " 00000000000000"; String PaddedStr = Padding.substring(0, Size-Str.length()) + Str; return PaddedStr; } public String AsciiStr(long Num) { String[] Ascii = {" "," "," "," "," "," "," "," "," "," ", " "," "," "," "," "," "," "," "," "," ", " "," "," "," "," "," "," "," "," "," ", " "," "," ","!","\"","#","$","%","&","'", "(",")","*","+","'","-",".","/","0","1", "2","3","4","5","6","7","8","9",":",";", "<","=",">","?","@","A","B","C","D","E", "F","G","H","I","J","K","L","M","N","O", "P","Q","R","S","T","U","V","W","X","Y", "Z","[","\\","]","^","_","`","a","b","c", "d","e","f","g","h","i","j","k","l","m", "n","o","p","q","r","s","t","u","v","w", "x","y","z","{","|","}","~" }; String Ret = " "; if (Num < 127) { Ret = Ascii[(int) Num]; } return Ret; } }