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Da du keine Schleifen, If , Methoden benutzen darfst, kannst du es nur hinter einander schreiben.
Ich habe die beiden Methoden „add4Bits“ und „get4Bit“ genannt.

das wäre meine Lösungs Variante ist natürlich nicht getestet

[CODE=java]String mul4BitTo8Bit(String ob1, String ob2){

String[] highNibble = {"0000","0"};
String[] lowNibble = {"0000","0"};
String c;

c = get4Bits(ob1, ob2.charAt(0));
lowNibble = add4Bits(lowNibble[0], c );
highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit

//schieben
lowNibble = add4Bits(lowNibble[0], lowNibble[0]);
highNibble = add4Bits(highNibble[0], highNibble[0]);
highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit

c = get4Bits(ob1, ob2.charAt(1));
lowNibble = add4Bits(lowNibble[0], c );
highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit

//schieben
lowNibble = add4Bits(lowNibble[0], lowNibble[0]);
highNibble = add4Bits(highNibble[0], highNibble[0]);
highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit

c = get4Bits(ob1, ob2.charAt(2));
lowNibble = add4Bits(lowNibble[0], c );
highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit

//schieben
lowNibble = add4Bits(lowNibble[0], lowNibble[0]);
highNibble = add4Bits(highNibble[0], highNibble[0]);
highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit

c = get4Bits(ob1, ob2.charAt(3));
lowNibble = add4Bits(lowNibble[0], c );
highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit

return highNible[0] + lowNible[0];
}
[/CODE]

<blockquote data-quote="Jw456" data-source="post: 1301615" data-attributes="member: 67540">Da du keine Schleifen,&nbsp; If , Methoden benutzen darfst, kannst&nbsp; du es nur&nbsp; hinter einander schreiben.Ich habe die beiden Methoden „add4Bits“&nbsp;&nbsp; und&nbsp; „get4Bit“ genannt.das wäre meine Lösungs Variante ist natürlich nicht getestet[CODE=java]String mul4BitTo8Bit(String ob1, String ob2){&nbsp; &nbsp; &nbsp; &nbsp; String[] highNibble = {&quot;0000&quot;,&quot;0&quot;};&nbsp; &nbsp; &nbsp; &nbsp; String[] lowNibble = {&quot;0000&quot;,&quot;0&quot;};&nbsp; &nbsp; &nbsp; &nbsp; String&nbsp; c;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; c = get4Bits(ob1,&nbsp; ob2.charAt(0));&nbsp; &nbsp; &nbsp; &nbsp; lowNibble&nbsp; = add4Bits(lowNibble[0], c );&nbsp; &nbsp; &nbsp; &nbsp; highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; //schieben&nbsp; &nbsp; &nbsp; &nbsp; lowNibble&nbsp; = add4Bits(lowNibble[0], lowNibble[0]);&nbsp; &nbsp; &nbsp; &nbsp; highNibble = add4Bits(highNibble[0], highNibble[0]);&nbsp; &nbsp; &nbsp; &nbsp; highNibble = add4Bits(highNibble[0], lowNibble[1]);&nbsp; // hNibble + carrybit&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; c = get4Bits(ob1,&nbsp; ob2.charAt(1));&nbsp; &nbsp; &nbsp; &nbsp; lowNibble&nbsp; = add4Bits(lowNibble[0], c );&nbsp; &nbsp; &nbsp; &nbsp; highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; //schieben&nbsp; &nbsp; &nbsp; &nbsp; lowNibble&nbsp; = add4Bits(lowNibble[0], lowNibble[0]);&nbsp; &nbsp; &nbsp; &nbsp; highNibble = add4Bits(highNibble[0], highNibble[0]);&nbsp; &nbsp; &nbsp; &nbsp; highNibble = add4Bits(highNibble[0], lowNibble[1]);&nbsp; // hNibble + carrybit&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; c = get4Bits(ob1,&nbsp; ob2.charAt(2));&nbsp; &nbsp; &nbsp; &nbsp; lowNibble&nbsp; = add4Bits(lowNibble[0], c );&nbsp; &nbsp; &nbsp; &nbsp; highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; //schieben&nbsp; &nbsp; &nbsp; &nbsp; lowNibble&nbsp; = add4Bits(lowNibble[0], lowNibble[0]);&nbsp; &nbsp; &nbsp; &nbsp; highNibble = add4Bits(highNibble[0], highNibble[0]);&nbsp; &nbsp; &nbsp; &nbsp; highNibble = add4Bits(highNibble[0], lowNibble[1]);&nbsp; // hNibble + carrybit&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; c = get4Bits(ob1,&nbsp; ob2.charAt(3));&nbsp; &nbsp; &nbsp; &nbsp; lowNibble&nbsp; = add4Bits(lowNibble[0], c );&nbsp; &nbsp; &nbsp; &nbsp; highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return highNible[0] + lowNible[0];&nbsp; &nbsp; }&nbsp; &nbsp; [/CODE]</blockquote>

[QUOTE="Jw456, post: 1301615, member: 67540"] Da du keine Schleifen, If , Methoden benutzen darfst, kannst du es nur hinter einander schreiben. Ich habe die beiden Methoden „add4Bits“ und „get4Bit“ genannt. das wäre meine Lösungs Variante ist natürlich nicht getestet [CODE=java]String mul4BitTo8Bit(String ob1, String ob2){ String[] highNibble = {"0000","0"}; String[] lowNibble = {"0000","0"}; String c; c = get4Bits(ob1, ob2.charAt(0)); lowNibble = add4Bits(lowNibble[0], c ); highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit //schieben lowNibble = add4Bits(lowNibble[0], lowNibble[0]); highNibble = add4Bits(highNibble[0], highNibble[0]); highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit c = get4Bits(ob1, ob2.charAt(1)); lowNibble = add4Bits(lowNibble[0], c ); highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit //schieben lowNibble = add4Bits(lowNibble[0], lowNibble[0]); highNibble = add4Bits(highNibble[0], highNibble[0]); highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit c = get4Bits(ob1, ob2.charAt(2)); lowNibble = add4Bits(lowNibble[0], c ); highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit //schieben lowNibble = add4Bits(lowNibble[0], lowNibble[0]); highNibble = add4Bits(highNibble[0], highNibble[0]); highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit c = get4Bits(ob1, ob2.charAt(3)); lowNibble = add4Bits(lowNibble[0], c ); highNibble = add4Bits(highNibble[0], lowNibble[1]); // hNibble + carrybit return highNible[0] + lowNible[0]; } [/CODE] [/QUOTE]

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