Java-Dynamic initialization

dynamic initialization in java
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we use a class Scanner available in java.util.* to initialize values dynamically from keyboard.

Method summary
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byte--nextByte()
short-nextShort()
int --nextInt()
long--nextLong()
float-nextFloat()
double-nextDouble()
boolean-nextBoolean()
String-next()
      -nextLine()

ex:
Scanner s=new Scanner(System.in);
int a=s.nextInt();