How to take input in java || how to show output in java || Java from basic || input & output in jav

• This video describes the most basic but most important part : taking input from user and giving output.

• Java Scanner class allows the user to take input from the console. It belongs to java.util package. It is used to read the input of primitive types like int, double, long, short, float, and byte. It is the easiest way to read input in Java program.

Syntax: Scanner sc=new Scanner(System.in);

The below table gives the description about the methods to scan a particular data type:
Method Description
int nextInt():- It is used to scan the next token of the input as an integer.
float nextFloat():- It is used to scan the next token of the input as a float.
double nextDouble():- It is used to scan the next token of the input as a double.
byte nextByte() It is used to scan the next token of the input as a byte.
String nextLine() Advances this scanner past the current line.
boolean nextBoolean() It is used to scan the next token of the input into a boolean value.
long nextLong() It is used to scan the next token of the input as a long.
short nextShort() It is used to scan the next token of the input as a Short.
BigInteger nextBigInteger() It is used to scan the next token of the input as a BigInteger.
BigDecimal nextBigDecimal() It is used to scan the next token of the input as a BigDecimal

• To display output we can use:
print(): This method in Java is used to display a text on the console. This text is passed as the parameter to this method in the form of String. This method prints the text on the console and the cursor remains at the end of the text at the console. The next printing takes place from just here.
println(): This method in Java is also used to display a text on the console. It prints the text on the console and the cursor moves to the start of the next line at the console. The next printing takes place from the next line

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