- String charAt()
- String compareTo()
- String concat()
- String contains()
- String endsWith()
- String equals()
- equalsIgnoreCase()
- String format()
- String getBytes()
- String getChars()
- String indexOf()
- String intern()
- String isEmpty()
- String join()
- String lastIndexOf()
- String length()
- String replace()
- String replaceAll()
- String split()
- String startsWith()
- String valueOf()
- String substring()
- String toCharArray()
- String toLowerCase()
- String toUpperCase()
- String trim()
- Math.abs()
- Math.max()
- Math.min()
- Math.round()
- Math.sqrt()
- Math.cbrt()
- Math.pow()
- Math.signum()
- Math.ceil()
- Math.copySign()
- Math.nextAfter()
- Math.nextUp()
- Math.nextDown()
- Math.floor()
- Math.floorDiv()
- Math.random()
- Math.rint()
- Math.hypot()
- Math.ulp()
- Math.getExponent()
- Math.IEEEremainder()
- Math.addExact()
- Math.subtractExact()
- Math.multiplyExact()
- Math.incrementExact()
- Math.decrementExact()
- Math.negateExact()
- Math.toIntExact()
- Math.log()
- Math.log10()
- Math.log1p()
- Math.exp()
- Math.expm1()
- Math.sin()
- Math.cos()
- Math.tan()
- Math.asin()
- Math.acos()
- Math.atan()
- Math.sinh()
- Math.cosh()
- Math.tanh()
- Math.toDegrees
- Math.toRadians
- start()
- run()
- sleep()
- currentThread()
- join()
- getPriority()
- setPriority()
- getName()
- setName()
- getId()
- isAlive()
- yield()
- suspend()
- resume()
- stop()
- destroy()
- isDaemon()
- setDaemon()
- interrupt()
- isinterrupted()
- interrupted()
- activeCount()
- checkAccess()
- holdLock()
- dumpStack()
- getStackTrace()
- enumerate()
- getState()
- getThreadGroup()
- toString()
- notify()
- notifyAll()
- setContextClassLoader()
- getContextClassLoader()
- getDefaultUncaughtExceptionHandler()
- setDefaultUncaughtExceptionHandler()
- Java Thread class
- Collection add()
- Collection addAll()
- Collection clear()
- Collection contains()
- Collection containsAll()
- Collection equals()
- Collection hashCode()
- Collection isEmpty()
- Collection iterator()
- Collection remove()
- Collection removeAll()
- Collection removeIf()
- Collection retainAll()
- Collection size()
- Collection spliterator()
- Collection toArray()
- Vector add()
- Vector addAll()
- Vector addElement()
- Vector capacity()
- Vector clear()
- Vector clone()
- Vector containsAll()
- Vector contains()
- Vector copyInto()
- Vector elements()
- Vector ensureCapacity()
- Vector equals()
- Vector firstElement()
- Vector forEach()
- Vector hashCode()
- Vector elementAt()
- Vector get()
- Vector indexOf()
- Vector insertElementAt()
- Vector isEmpty()
- Vector iterator()
- Vector lastElement()
- Vector lastIndexOf()
- Vector removeAllElements()
- Vector removeAll()
- Vector removeElementAt()
- Vector removeElement()
- Vector remove()
- Vector replaceAll()
- Vector retainAll()
- Vector removeRange()
- Vector setElementAt()
- Vector set()
- Vector setSize()
- Vector size()
- Vector sort()
- Vector spliterator()
- Vector subList()
- Vector toString()
- Vector trimToSize()
- Vector listIterator()
- Vector toArray()
- Socket Class
- Socket bind()
- Socket close()
- Socket connect()
- Socket get00BInline()
- Socket getChannel()
- Socket getInetAddress()
- Socket getKeepAlive()
- Socket getLocalPort()
- Socket getLocalSocketAddress()
- Socket getPort()
- Socket getReceiveBufferSize()
- Socket getRemoteSocketAddress()
- Socket getReuseAddress()
- Socket getSendBufferSize()
- Socket getSoLinger()
- getSoTimeout()
- Socket getTcpNoDelay()
- Socket getTrafficClass()
- Socket isBound()
- Socket isClosed()
- Socket isConnected()
- Socket isInputShutdown()
- Socket isOutputShutdown()
- Socket sendUrgentData()
- Socket setKeepAlive()
- Socket setOOBInline()
- Socket setTrafficClass()
- Socket shutdownInput()
- Socket shutdownOutput()
- Socket setSoLinger()
- Socket setSoTimeout()
- Socket setTcpNoDelay()
- Socket getInputStream()
- Socket getOutputStream()
- Socket setReceiveBufferSize()
- Socket setReuseAddress()
- Socket setSendBufferSize()
- Socket toString()
- Java Integer Class
- Integer bitCount()
- Integer byteValue()
- Integer compare()
- Integer compareTo()
- Integer compareUnsigned()
- Integer decode()
- Integer divideUnsigned()
- Integer doubleValue()
- Integer equals()
- Integer floatValue()
- Integer hashCode()
- Integer highestOneBit()
- Integer intValue()
- Integer longValue()
- Integer lowestOneBit()
- Integer max()
- Integer min()
- Integer numberOfLeadingZeros()
- Integer numberOfTrailingZeros()
- Integer parseUnsignedInt()
- Integer remainderUnsigned()
- Integer reverseBytes()
- Integer reverse()
- Integer rotateLeft()
- Integer rotateRight()
- Integer shortValue()
- Integer signum()
- Integer sum()
- Integer toBinaryString()
- Integer toHexString()
- Integer toOctalString()
- Integer toString()
- Integer toUnsignedLong()
- Java Integer toUnsignedString() Method
- Integer parseInt()
- Java IdentityHashMap values() method
- Java IdentityHashMap size() method
- Java IdentityHashMap remove() method
- Java IdentityHashMap putAll() method
- Java IdentityHashMap put() method
- Java IdentityHashMap keySet() method
- Java IdentityHashMap isEmpty() method
- Java IdentityHashMap hashCode() method
- Java IdentityHashMap get() method
- Java IdentityHashMap equals() method
- Java IdentityHashMap entrySet() method
- Java IdentityHashMap containsValue() method
- Java IdentityHashMap containsKey() method
- Java IdentityHashMap clone() method
- Java IdentityHashMap clear() method
- Java ArrayBlockingQueue drainTo() Method
- Java ArrayBlockingQueue Class
- Java ArrayBlockingQueue add() Method
- Java ArrayBlockingQueue clear() Method
- Java ArrayBlockingQueue contains() Method
- Java ArrayBlockingQueue forEach() Method
- Java ArrayBlockingQueue iterator() Method
- Java ArrayBlockingQueue offer() Method
- Java ArrayBlockingQueue peek() Method
- Java ArrayBlockingQueue poll() Method
- Java ArrayBlockingQueue put() Method
- Java ArrayBlockingQueue removeAll() Method
- Java ArrayBlockingQueue remainingCapacity() Method
- Java ArrayBlockingQueue remove() Method
- Java ArrayBlockingQueue removeIf() Method
- Java ArrayBlockingQueue retainAll() Method
- Java ArrayBlockingQueue size() Method
- Java ArrayBlockingQueue Spliterator() Method
- Java ArrayBlockingQueue take() Method
- Java ArrayBlockingQueue toString() Method
- Java ArrayBlockingQueue toArray() Method
- Java Spliterator
- Java Spliterator characteristics() Method
- Java Spliterator estimateSize() Method
- Java Spliterator forEachRemaining() Method
- Java Spliterator getComparator() Method
- Java Spliterator getExactSizeIfKnown() Method
- Java Spliterator hasCharacteristics() Method
- Java Spliterator tryAdvance() Method
- Java Spliterator trySplit() Method
- Java BitSet flip() method
- Java BitSet xor() method
- Java BitSet valueOf() method
- Java BitSet toString() method
- Java BitSet toLongArray() method
- Java BitSet toByteArray() method
- Java BitSet stream() method
- Java BitSet size() method
- Java BitSet set() method
- Java BitSet previousSetBit() method
- Java BitSet previousClearBit() method
- Java BitSet or() method
- Java BitSet nextSetBit() method
- Java BitSet nextClearBit() method
- Java BitSet length() method
- Java BitSet isEmpty() method
- Java BitSet intersects() method
- Java BitSet hashCode() method
- Java BitSet get() method
- Java BitSet equals() method
- Java BitSet clone() method
- Java BitSet cardinality() method
- Java BitSet clear() method
- Java BitSet andNot() method
- Java BitSet and() method
- Java Instant query() method
- Java Instant compareTo() method
- Java Instant plusSeconds() method
- Java Instant plusNanos() method
- Java Instant plusMillis() method
- Java Instant atOffset() method
- Java Instant ofEpochSecond() method
- Java Instant ofEpochMilli() method
- Java Instant now() method
- Java Instant minusSeconds() method
- Java Instant minusNanos() method
- Java Instant minusMillis() method
- Java Instant minus() method
- Java Instant isSupported() method
- Java Instant isBefore() method
- Java Instant isAfter() method
- Java Instant hashCode() method
- Java Instant getNano() method
- Java Instant get() method
- Java Instant getLong() method
- Java Instant getEpochSecond() method
- Java Instant equals() method
- Java Instant atZone() method
- Java Instant adjustInto() method
- Java AtomicInteger
- addAndGet(int delta)
- compareAndSet(int expect, int update)
- decrementAndGet()
- doubleValue()
- floatValue()
- get()
- getAndAdd()
- getAndDecrement()
- getAndSet()
- incrementAndGet()
- getAndIncrement()
- intValue()
- lazySet(int newValue)
- longValue()
- set(int newValue)
- toString()
- weakCompareAndSet(int expect,int newValue)
- Big Integer Class
- abs()
- add()
- and()
- andNot()
- bitCount()
- bitLength()
- clearBit()
- compareTo()
- divide()
- divideAndRemainder()
- doubleValue()
- equals()
- flipBit()
- floatValue()
- gcd()
- getLowestSetBit()
- hashCode()
- intValue()
- isProbablePrime()
- longValue()
- max()
- min()
- mod()
- modInverse()
- modPow()
- negate()
- nextProbablePrime()
- not()
- or()
- pow()
- probablePrime()
- setBit()
- shiftLeft()
- shiftRight()
- signum()
- subtract()
- testbit()
- toByteArray()
- toString()
- valueOf()
- xor()
- Java BigInteger sqrt() method
- Java Class
- asSubclass()
- Cast()
- desiredAssertionStatus()
- forName()
- getAnnotatedInterfaces()
- getAnnotatedSuperclass()
- getAnnotation()
- getAnnotationsByType()
- getAnnotations()
- getCanonicalName()
- getClasses()
- getClassLoader()
- getComponentType
- getConstructor()
- getConstructors()
- getDeclaredAnnotation()
- getDeclaredAnnotationsByType()
- getDeclaredAnnotations()
- getDeclaredConstructor()
- getDeclaredConstructors()
- getDeclaredField()
- getDeclaredFields()
- getDeclaredMethod()
- getDeclaredMethods()
- getDeclaringClass()
- getField()
- getFields()
- getGenericInterfaces()
- getGenericSuperClass()
- getInterfaces()
- getMethod()
- getMethods()
- getModifiers()
- getName()
- getPackage()
- getPackageName()
- getProtectionDomain()
- getResource()
- getSigners()
- getSimpleName()
- getSuperClass()
- isAnnotation()
- isAnnotationPresent()
- isAnonymousClass()
- isArray()
- isInstance()
- isInterface()
- isPrimitive()
- isSynthetic()
- Java Collections class
- addAll()
- asLifoQueue()
- binarySearch()
- checkedCollection()
- checkedList()
- checkedMap()
- checkedNavigableMap()
- checkedNavigableSet()
- checkedQueue()
- checkedSet()
- checkedSortedMap()
- checkedSortedSet()
- copy()
- disjoint()
- emptyEnumeration()
- emptyIterator()
- emptyList()
- emptyListIterator()
- emptyMap()
- emptyNavigableMap()
- emptyNavigableSet()
- emptySet()
- emptySortedMap()
- emptySortedSet()
- enumeration()
- fill()
- frequency()
- indexOfSubList()
- lastIndexOfSubList()
- list()
- max()
- min()
- nCopies()
- newSetFromMap()
- replaceAll()
- reverse()
- reverseOrder()
- rotate()
- shuffle()
- singleton()
- singletonList()
- singletonMap()
- Java Collections sort() Method
- swap()
- synchronizedCollection()
- synchronizedList()
- synchronizedMap()
- synchronizedNavigableMap()
- synchronizedNavigableSet()
- synchronizedSet()
- synchronizedSortedMap()
- synchronizedSortedSet()
- unmodifiableCollection()
- unmodifiableList()
- unmodifiableMap()
- unmodifiableNavigableMap()
- unmodifiableNavigableSet()
- unmodifiableSet()
- unmodifiableSortedMap()
- unmodifiableSortedSet()
- Difference between Array and ArrayList
- When to use ArrayList and LinkedList in Java
- Difference between ArrayList and Vector
- How to Compare Two ArrayList in Java
- How to reverse ArrayList in Java
- When to use ArrayList and LinkedList in Java
- How to make ArrayList Read Only
- Difference between length of array and size() of ArrayList in Java
- How to Synchronize ArrayList in Java
- How to convert ArrayList to Array and Array to ArrayList in java
- Array vs ArrayList in Java
- How to Sort Java ArrayList in Descending Order
- How to remove duplicates from ArrayList in Java
Java Collections unmodifiableList() Method21 Mar 2025 | 2 min read The unmodifiableList() method of Java Collections class is used to get an unmodifiable view of the specified list. If any attempt occurs to modify the returned list whether direct or via its iterator, results in an UnsupportedOperationException. SyntaxFollowing is the declaration of unmodifiableList() method: Parameter
ReturnsThe unmodifiableList() method returns an unmodifiable view of the specified list. ExceptionsNA Example 1Output: Unmodifiable List: [Google, Mozila FireFox, Yahoo] Unmodifiable List after adding element to the list:[Google, Mozila FireFox, Yahoo, Safari] Example 2Output: Unmodifiable List: [Google, Mozila FireFox, Yahoo] Exception in thread "main" java.lang.UnsupportedOperationException at java.base/java.util.Collections$UnmodifiableCollection.add(Collections.java:1056) at myPackage.UnmodifiableListExample2.main(UnmodifiableListExample2.java:9) Example 3Output: Unmodifiable list: [10, 20, 30, 40] Unmodifiable list after adding (50): [10, 20, 30, 40, 50] Next TopicJava Collections Class |
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