#Java - Code Snippets for '#Iterator' - 6 code snippet(s) found |
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Sample 1. Get all Permutations of List Elements using Apache Commons PermutationIterator | |
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List<String> list = new ArrayList();
list.add("Washington");
list.add("Nevada");
list.add("California");
PermutationIterator permIterator = new PermutationIterator((Collection) list);
permIterator.forEachRemaining(System.out::print); // prints [Washington, Nevada, California][Washington, California, Nevada][California, Washington, Nevada][California, Nevada, Washington][Nevada, California, Washington][Nevada, Washington, California]
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Like Feedback Permutations of collection elements Permutations of List elements Apache Commons PermutationIterator Iterator Collections .forEachRemaining System.out::print List ArrayList |
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Sample 2. Code Sample / Example / Snippet of java.text.StringCharacterIterator | |
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public static String encode(String source) {
if (source == null) {
return "$e";
}
StringBuffer result = new StringBuffer();
StringCharacterIterator sci = new StringCharacterIterator(source);
for (char c = sci.current(); c != CharacterIterator.DONE; c = sci.next()) {
if (c == '$') {
result.append("$$");
}
else if (c == ',') {
result.append("$k");
}
else if (c == '
') {
result.append("$n");
}
else if (c == '
') {
result.append("$r");
}
else {
result.append(c);
}
}
return result.toString();
}
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Like Feedback java.text.StringCharacterIterator |
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Sample 3. Usage of Iterator | |
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Iterator iterator = ReportingEmp.iterator();
while (iterator.hasNext()) {
EmployeeBean eb1 = (EmployeeBean)iterator.next();
EmployeeFactory empFactory = new EmployeeFactory(eb1.getType());
svEmp = empFactory.getFactoryProduct();
allocation += svEmp.getAllocation();
}
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Like Feedback collections Iterator |
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Sample 4. Get Length of String having UTF8 Characters | |
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public static int utf8Length(String string) {
CharacterIterator iter = new StringCharacterIterator(string);
char ch = iter.first();
int size = 0;
while (ch != CharacterIterator.DONE) {
if ((ch >= 0xD800) && (ch < 0xDC00)) {
char trail = iter.next();
if ((trail > 0xDBFF) && (trail < 0xE000)) {
size += 4;
} else {
size += 3;
iter.previous(); // rewind one
}
} else if (ch < 0x80) {
size++;
} else if (ch < 0x800) {
size += 2;
} else {
size += 3;
}
ch = iter.next();
}
return size;
}
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Like Feedback UTF8 characters CharacterIterator.DONE CharacterIterator StringCharacterIterator |
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Sample 5. Code Sample / Example / Snippet of java.util.Iterator | |
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public void validateRangeIterators() {
SortedRangeSet srs1 = new SortedRangeSet("1-10");
Iterator i1 = srs1.rangeIterator();
assert i1.hasNext() : "We should have one Range instance in our iterator.";
assert ((Range) i1.next()).toRepresentation().equals("1-10");
assert !i1.hasNext() : "There should be only one instance in our iterator.";
SortedRangeSet srs2 = new SortedRangeSet("1-5,8,10-15");
Iterator i2 = srs2.rangeIterator();
assert i2.hasNext() && i2.next() instanceof Range
&& i2.hasNext() && i2.next() instanceof Range
&& i2.hasNext() && i2.next() instanceof Range
&& !i2.hasNext() : "There should be exactly three Range instances in our iterator.";
SortedRangeSet srs3 = new SortedRangeSet("");
assert !srs3.iterator().hasNext() : "Iterator should be empty.";
}
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Sample 6. Code Sample / Example / Snippet of org.apache.ace.range.RangeIterator | |
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private void verifyStoreContents(final LogStoreImpl store, final int count, Writer... writers) throws IOException {
List<Descriptor> descriptors = store.getDescriptors();
long expectedID = 0;
for (Descriptor desc : descriptors) {
SortedRangeSet rangeSet = desc.getRangeSet();
RangeIterator rangeIter = rangeSet.iterator();
while (rangeIter.hasNext()) {
long id = rangeIter.next();
Event expectedEntry = null;
for (int i = 0; (expectedEntry == null) && i < writers.length; i++) {
expectedEntry = writers[i].m_written.remove(id);
}
assertNotNull(expectedEntry, "Event ID #" + id + " never written?!");
assertEquals(expectedEntry.getID(), expectedID++, "Entry ID mismatch?!");
}
}
}
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Like Feedback org.apache.ace.range.RangeIterator |
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