JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Java String Examples

  • The String class is immutable (constant), i.e. Strings in java, once created and initialized, cannot be changed.
  • The String is a final class, no other class can extend it, and you cannot change the state of the string.
  • String values cannot be compare with '==', for string value comparision, use equals() method.
  • String class supports various methods, including comparing strings, extracting substrings, searching characters & substrings, converting into either lower case or upper case, etc.
  • The string examples given below describes more on string functionlaity.

String Sample Code Examples

Knowledge Centre
String Vs StringBuffer
We know that String is immutable object. We can not change the value of a String object once it is initiated. If we try to change the value of the existing String object then it creates new object rather than changing the value of the existing object. So incase, we are going to do more modificatios on String, then use StringBuffer. StringBuffer updates the existing objects value, rather creating new object.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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