Java ClassesLesson 42Free preview

Java User Input

This lesson is part of Java · All levels

Summary

To receive data from users, Java provides class Scanner on the java.util package. The scanner can read integers, decimals, or a single line of text from the keyboard input. Always close the Scanner object with close() after completion so that the resource does not leak.

Key points

Make the Scanner with new Scanner(System.in) to read from the keyboard
Read the whole number, read the decimal, read the line
Import.Scanner must be written to recognize class Scanner
Close the Scanner with close() after use is complete

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