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PolaDeret.java
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PolaDeret.java
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package latihan;
public class PolaDeret {
public String [] polaSatu(int n) {
String[] array = new String[n];
char c ='a';
if (n % 2 != 0) {
int medOdd = (n + 1) / 2;
for (int i = 0; i < n; i++) {
if (i < medOdd - 1) {
array[i] = String.valueOf(c++);
} else {
array[i] = String.valueOf(c--);
}
}
} else {
int medEven = n / 2;
for (int i = 0; i < n; i++) {
if (i < medEven - 1) {
array[i] = String.valueOf(c++);
} else if (i == medEven-1) {
array[i] = String.valueOf(c);
} else {
array[i] = String.valueOf(c--);
}
}
}
return array;
}
public String [] polaDua(int n) {
String[]array = new String[n];
char c='a';
int bil1=0, bil2=1, bilNow=1;
for (int i=0; i<n; i++) {
if (i%2 == 0) {
array[i]= Integer.toString(bilNow);
bilNow = bil1 + bil2;
bil1 = bil2;
bil2 = bilNow;
} else {
array[i] = Character.toString(c++);
}
}
return array;
}
}