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Chain1Sequence.java
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89 lines (64 loc) · 2.53 KB
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import java.util.ArrayList;
import java.util.List;
public class Chain1Sequence {
public boolean isNumeric(String value){
try {
Long.parseLong(value);
return true;
} catch(NumberFormatException e){
return false;
}
}
//2147483647 IntegerMax
//4194303 число, которое все еще дает цепочку int
public <T> T returnNumericValue(String value) {
if (isNumeric(value)) {
if (Long.parseLong(value) >= 0) {
if (Long.parseLong(value) <= 4194303) {
return (T) Integer.valueOf(Integer.parseInt(value));
} else {
return (T) Long.valueOf(Long.parseLong(value));
}
}
return null;
}
return null;
}
public List<String> getExpectedValues(String value) {
List <String> expectedValues = new ArrayList<>();
if (returnNumericValue(value) instanceof Integer) {
int valueInt = Integer.parseInt(value);
expectedValues.add(0, String.valueOf(valueInt)); //expectedValues.get(0) -> F1
for (int i = 1; i < 10; i ++) {
valueInt = valueInt * 2;
expectedValues.add(i, String.valueOf(valueInt)); //expectedValues.get(i) -> Fi+1 until F10
}
return expectedValues;
} else if(returnNumericValue(value) instanceof Long) {
long valueLong = Long.parseLong(value);
expectedValues.add(0, String.valueOf(valueLong)); //expectedValues.get(0) -> F1
for (int i = 1; i < 10; i ++) {
valueLong = valueLong * 2;
expectedValues.add(i, String.valueOf(valueLong)); //expectedValues.get(i) -> Fi+1 until F10
}
return expectedValues;
}
return null;
}
public List<String> getExpectedValuesLong(String value) {
List<String> expectedValues = new ArrayList<>();
if (isNumeric(value)) {
long valueLong = Long.parseLong(value);
if (valueLong >= 0) {
expectedValues.add(0, String.valueOf(valueLong)); //expectedValues.get(0) -> F1
for (int i = 1; i < 10; i ++) {
valueLong = valueLong * 2;
expectedValues.add(i, String.valueOf(valueLong)); //expectedValues.get(i) -> Fi+1 until F10
}
return expectedValues;
}
return null;
}
return null;
}
}