This wouldn't directly answer your question, but I hope it helps.

The below is from the source code of java.lang.String.

/** * Returns a hash code for this string. The hash code for a * <code>String</code> object is computed as * <blockquote><pre> * s[0]*31^(n-1) + s[1]*31^(n-2) + ... + s[n-1] * </pre></blockquote> * using <code>int</code> arithmetic, where <code>s[i]</code> is the * <i>i</i>th character of the string, <code>n</code> is the length of * the string, and <code>^</code> indicates exponentiation. * (The hash value of the empty string is zero.) * * @return a hash code value for this object. */ public int hashCode() { int h = hash; int len = count; if (h == 0 && len > 0) { int off = offset; char val[] = value; for (int i = 0; i < len; i++) { h = 31*h + val[off++]; } hash = h; } return h; } 

This wouldn't directly answer your question, but I hope it helps.

The below is from the source code of java.lang.String.

/** * Returns a hash code for this string. The hash code for a * <code>String</code> object is computed as * <blockquote><pre> * s[0]*31^(n-1) + s[1]*31^(n-2) + ... + s[n-1] * </pre></blockquote> * using <code>int</code> arithmetic, where <code>s[i]</code> is the * <i>i</i>th character of the string, <code>n</code> is the length of * the string, and <code>^</code> indicates exponentiation. * (The hash value of the empty string is zero.) * * @return a hash code value for this object. */ public int hashCode() {  int h = hash; int len = count;  if (h == 0 && len > 0) { int off = offset; char val[] = value; for (int i = 0; i < len; i++) { h = 31*h + val[off++]; } hash = h; } return h; }