Read password (hidden) from Console

Generally all the texts given as input in a Java console application are visible. When we read a password from a Java console application, it will not be wise to display the input password. If we want to hide the password, we can use the readPassword method java.io.Console class...

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Java Variables

Variable is the named location of memory. Variable is used to store data, that’s why this is called the unit of storage. A value of a variable can be modified during the course of program execution. In Java, you must explicitly declare all variables before using them.Variable declaration includes:Data typeVariable nameInitial value (optional)A ; (semi colon) at the end of declaration statement.Syntax...

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Java Data Types

Data Types: A data type or simply type is a classification identifying one of various types of data, such as whole numbers or fractional numbers.Data Type determines:the possible values for that typethe operations that can be done on values of that typethe meaning of the datathe way values of that type can be storedJava is a strongly typed language because when you declare a variable,...

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