numbersystemsconverter except for octal

NumSystemsConverter.java

@@ -0,0 +1,64 @@
+
+/**
+ * Write a description of class NumSystemsConverter here.
+ *
+ * @author (your name)
+ * @version (a version number or a date)
+ */
+public class NumSystemsConverter
+{
+ // Decimal to binary converter
+
+public String toBinary(double d, int precision) {
+    long wholePart = (long) d;
+    return wholeToBinary(wholePart) + '.' + fractionalToBinary(d - wholePart, precision);
+}
+
+private String wholeToBinary(long l) {
+    return Long.toBinaryString(l);
+}
+
+private String fractionalToBinary(double num, int precision) {
+    StringBuilder binary = new StringBuilder();
+    while (num > 0 && binary.length() < precision) {
+        double r = num * 2;
+        if (r >= 1) {
+            binary.append(1);
+            num = r - 1;
+        } else {
+            binary.append(0);
+            num = r;
+        }
+    }
+    return binary.toString();
+}
+
+// display mode is sent along with displayNumber, could also be defined globally)
+
+public class String updateDisplayNumber(double displayNumber,int mode){
+  String str="";
+switch(mode) {
+  case 1:{
+    str=Double.toString(displayNumber);
+    break;
+  }
+  case 2:{
+    // toBinary takes number to convert and precision
+    str=toBinary(displayNumber,2);
+    break;
+  }
+  case 3:{
+    str=Double.toHexString(displayNumber);
+    break;
+  }
+  // OCTAL CONVERSION
+  // case 4:{
+  //  double fraction = (int)((displayNumber%1)+0.5);
+  //  double integral = (int)displayNumber-fraction;
+  //  String str=Integer.toOctalString(integral)+"."+Integer.toOctalString(fraction);
+  //  break;
+  // }
+}
+  return str;
+}
+}

package.bluej

@@ -5,20 +5,20 @@ dependency1.type=UsesDependency
 dependency2.from=UpdateDisplay
 dependency2.to=SwitchModes
 dependency2.type=UsesDependency
-editor.fx.0.height=977
-editor.fx.0.width=1920
+editor.fx.0.height=717
+editor.fx.0.width=1280
 editor.fx.0.x=0
 editor.fx.0.y=23
-objectbench.height=101
-objectbench.width=1896
+objectbench.height=92
+objectbench.width=1256
 package.divider.horizontal=0.6
-package.divider.vertical=0.8824809575625681
-package.editor.height=804
-package.editor.width=1794
+package.divider.vertical=0.8495440729483282
+package.editor.height=552
+package.editor.width=1154
 package.editor.x=0
 package.editor.y=23
-package.frame.height=977
-package.frame.width=1920
+package.frame.height=716
+package.frame.width=1280
 package.numDependencies=2
 package.numTargets=6
 package.showExtends=true