Computer Applications
What are String and StringBuffer classes of Java?
Java String Handling
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Answer
In Java, we can work with characters by using String and StringBuffer class.
String class — The instances of String class can hold unchanging string, which once initialized cannot be modified. For example,
String s1 = new String("Hello");
StringBuffer class — The instances of StringBuffer class can hold mutable strings, that can be changed or modified. For example,
StringBuffer sb1 = new StringBuffer("Hello");
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Related Questions
Which of these constructors is used to create an empty String object?
- String( )
- String(void)
- String(0)
- None of the mentioned
Which of these is an incorrect statement?
- String objects are immutable, they cannot be changed.
- When you assign a new value to a String object, Java internally creates another String object.
- StringBuffer is a mutable class that can store sequence of characters.
- String objects are actually arrays of characters.
How are Strings different from StringBuffers ?
How can you convert a numeric value enclosed in a string format ?