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POCopy constructor help, trying to copy a boolean array. Java
 

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  1. POCopy constructor help, trying to copy a boolean array. Java
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    <p>I have looked through as many previous questions as possible but never saw a question that had a boolean array as a variable.</p> <p>Here is my class:</p> <pre><code>public class Register { private boolean[] register; private int length; //Normal constructor public Register(int n) { if (n == 8 || n == 16 || n == 32 || n == 64) { length = n; register = new boolean[length]; for (int i = 0; i &lt; length; i++) { register[i] = false; } } else { throw new RegisterException( "A register can only contain 8, 16, 32, or 64 bits"); } } // Creates a copy of reg (an existing Register) public Register(Register reg) { length = reg.length; register = new boolean[reg.register.length]; System.arraycopy(reg.register, 0, this.register, 0, reg.register.length); } </code></pre> <p>In my driver program i am loading "1101101" into register1, but when i do: Register register2 = new Register(register1);</p> <p>and print out both results i get:</p> <p>0000000001101101</p> <p>0000000000010110</p> <p>Not really sure what is going on O.o any help would be appreciated, thanks!</p> <p>This is my load method. i held off on putting it in here because it might be hard to read:</p> <pre><code>public void load(String binaryRep) { String allTheBits = binaryRep; int charPosition = 0; int loadLength; int binaryNum = 0; String index = ""; String trimmedIndex = ""; if (allTheBits.length() &gt; 0 &amp;&amp; allTheBits.length() &lt;= length) { loadLength = allTheBits.length(); for (int i = length - (loadLength); i &lt; length; i++) { index = allTheBits.charAt(charPosition) + ""; trimmedIndex = index.trim(); binaryNum = Integer.parseInt(trimmedIndex); if (binaryNum == 1) { register[i] = true; } else if (binaryNum == 0) { register[i] = false; } charPosition++; } } else { throw new RegisterException("You can only load 0 - " + length + "bits."); } } </code></pre>
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      1. USPaŭlo Ebermann
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    1. COCan you show us your code for printing? As an aside, you don't need to explicitly initialize the elements of `register` to `false` in the default constructor; that's the default value for new array allocations. Also, since `this.register.length == this.length` for each Register object, you don't really need the `length` field.
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      1. USTed Hopp
    2. CO8 bits but you only have 7 digit numbers? is there something missing?
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      1. USprusswan
    3. CO@Tim: you didn't paste the code where you "load" the register with "1101101". I'm pretty sure you have some logic inversed in your "load" method.
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      1. USSyntaxT3rr0r
 

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