What is a Scanner in Java?

Scanner is a class in java. util package used for obtaining the input of the primitive types like int, double, etc. and strings . It is the easiest way to read input in a Java program, though not very efficient if you want an input method for scenarios where time is a constraint like in competitive programming.2 Tem 2019

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What does util * mean in Java?

Java. util. * is a built-in package in Java which encapsulates a similar group of classes, sub-packages and interfaces . The * lets you import a class from existing packages and use it in the program as many times you need. You can find the list of all classes, interfaces, exceptions in the official document.

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