added source

1 files changed, 109 insertions, 0 deletions

diff --git a/src/utilities/DecimalFormatter.java b/src/utilities/DecimalFormatter.java
new file mode 100644
index 0000000..a6b084e
--- /dev/null
+++ b/src/utilities/DecimalFormatter.java
@@ -0,0 +1,109 @@
+/*     */ package utilities;
+/*     */ 
+/*     */ import java.math.BigDecimal;
+/*     */ import java.math.MathContext;
+/*     */ 
+/*     */ public abstract class DecimalFormatter
+/*     */ {
+/*     */   private int sigFigs;
+/*     */   private String sigstr;
+/*     */   private boolean flt;
+/*     */ 
+/*     */   public DecimalFormatter(int sigFigs, boolean flt)
+/*     */   {
+/*  17 */     this.sigFigs = sigFigs;
+/*  18 */     this.flt = flt;
+/*  19 */     this.sigstr = "";
+/*  20 */     for (int i = 0; i < sigFigs + 1; i++) this.sigstr += "0"; 
+/*     */   }
+/*     */ 
+/*  23 */   public String scientificNotation(BigDecimal d) { int hold = 0;
+/*  24 */     boolean negatory = d.compareTo(BigDecimal.ZERO) == -1;
+/*  25 */     if (negatory) d = d.abs();
+/*  26 */     while (d.compareTo(BigDecimal.ONE) == -1)
+/*     */     {
+/*  28 */       d = d.multiply(BigDecimal.TEN);
+/*  29 */       hold--;
+/*     */     }
+/*  31 */     while (d.compareTo(BigDecimal.TEN) == 1)
+/*     */     {
+/*  33 */       d = d.divide(BigDecimal.TEN);
+/*  34 */       hold++;
+/*     */     }
+/*     */ 
+/*  37 */     String dec = roundTo(d, this.sigFigs - 1).toString();
+/*  38 */     if (!this.flt) {
+/*  39 */       dec = removeTrailingZeros(dec);
+/*     */     }
+/*  41 */     return (negatory ? "-" : "") + dec.substring(0, this.sigFigs + 1) + "*10^" + hold; }
+/*     */ 
+/*     */   public String scientificNotation(String num) {
+/*  44 */     return scientificNotation(new BigDecimal(num));
+/*     */   }
+/*     */   public String scientificNotation(double num) {
+/*  47 */     return scientificNotation(new BigDecimal(num));
+/*     */   }
+/*     */   public String eNotation(BigDecimal d) {
+/*  50 */     int hold = 0;
+/*  51 */     boolean negatory = d.compareTo(BigDecimal.ZERO) == -1;
+/*  52 */     if (negatory) d = d.abs();
+/*  53 */     while (d.compareTo(BigDecimal.ONE) == -1)
+/*     */     {
+/*  55 */       d = d.multiply(BigDecimal.TEN);
+/*  56 */       hold--;
+/*     */     }
+/*  58 */     while (d.compareTo(BigDecimal.TEN) == 1)
+/*     */     {
+/*  60 */       d = d.divide(BigDecimal.TEN);
+/*  61 */       hold++;
+/*     */     }
+/*     */ 
+/*  64 */     String dec = roundTo(d, this.sigFigs - 1).toString();
+/*  65 */     if (!this.flt) {
+/*  66 */       dec = removeTrailingZeros(dec);
+/*     */     }
+/*  68 */     return (negatory ? "-" : "") + dec + "e" + hold;
+/*     */   }
+/*     */   public static BigDecimal roundTo(BigDecimal b, int to) {
+/*  71 */     b = b.movePointRight(to);
+/*  72 */     b = b.round(MathContext.DECIMAL64);
+/*  73 */     b = b.movePointLeft(to);
+/*  74 */     return b;
+/*     */   }
+/*     */   public String eNotation(String num) {
+/*  77 */     return eNotation(new BigDecimal(num));
+/*     */   }
+/*     */   public String eNotation(double num) {
+/*  80 */     return eNotation(new BigDecimal(num));
+/*     */   }
+/*     */   public String getSigFigs(String num) {
+/*  83 */     boolean rec = false;
+/*  84 */     String ret = "";
+/*  85 */     int cnt = 0;
+/*  86 */     for (int i = 0; (i < num.length()) && (cnt < this.sigFigs); i++) {
+/*  87 */       ret = ret + num.charAt(i);
+/*  88 */       if ((num.charAt(i) != '0') && (num.charAt(i) != '.') && (!rec)) rec = true;
+/*  89 */       if (rec) cnt++;
+/*     */     }
+/*  91 */     return ret;
+/*     */   }
+/*     */   private static String removeTrailingZeros(String str) {
+/*  94 */     if (!str.contains(".")) return str;
+/*  95 */     for (int i = str.length() - 1; i >= 0; i--) {
+/*  96 */       if (str.charAt(i) != '0')
+/*  97 */         return str.substring(0, i + 1);
+/*     */     }
+/*  99 */     return str;
+/*     */   }
+/*     */   public abstract String format(String paramString);
+/*     */ 
+/* 103 */   public void setFigs(int sigFigs) { this.sigFigs = sigFigs;
+/* 104 */     this.sigstr = "";
+/* 105 */     for (int i = 0; i < sigFigs + 1; i++) this.sigstr += "0";
+/*     */   }
+/*     */ }
+
+/* Location:           Modulus.jar
+ * Qualified Name:     utilities.DecimalFormatter
+ * JD-Core Version:    0.6.2
+ */
\ No newline at end of file