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  #1  
Old 03-14-2003, 01:43 AM
Iguana Iguana is offline
 
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Default Need a little Java help...

How would I do this:

1. Generate an array of 20 random integers from zero to nine. search for the first occurence, if any, of the number seven, and report its position in the array.

2. Repeat the computation of part a 1000 times and for each position in the array, report the number of times that the first occurence of a seven in the array is at that position.
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  #2  
Old 03-14-2003, 01:24 PM
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amykhar amykhar is offline
 
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1.

Code:
    Random generator = new Random();
    int integerArray[20];
    int foundSeven=0;
    int i;
    for (i=0; i<20; i++) {
    integerArray[i] = generator.nextInt();
    if ((integerArray[i]==7)&&(foundSeven==0)) {
        foundSeven = 1;
        println("Found the number 7 at position " + i);
    }// end if
 } // end for
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  #3  
Old 03-14-2003, 01:32 PM
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amykhar amykhar is offline
 
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Random generator = new Random();
int integerArray[20];
int counterArray[20];
int foundSeven=0;
int i,j;
for (j=0;j<1000; j++) {
for (i=0; i<20; i++) {
integerArray[i] = generator.nextInt();
if ((integerArray[i]==7)&&(foundSeven==0)) {
foundSeven = 1;
counterArray[i]++;
println("Found the number 7 at position " + i);
}// end if
} // end for

} // end for

for (i=0;i<20;i++) {
println("Found at position " + i + " " + counterArray[i] + " times");
}
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  #4  
Old 03-14-2003, 02:07 PM
filburt1 filburt1 is offline
 
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Default

Of course you'll need the 20+ MB runtime, import a million classes, and have to wait half a year for it to compile. Not that there's anything wrong with that.
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Old 03-14-2003, 05:48 PM
Iguana Iguana is offline
 
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Default

Thanks everyone.

@Filb: I'm not going to compile it, I'm just helping out a friend.
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