How To Find Size Of Int In Java

How to find the size of a primitive data type in Java?

Java has no sizeof operator to find the size of primitive data types merely all Java primitive wrappers except Boolean provide a SIZE constant in bits that could be divided by 8 to get the size of a data type in bytes. Moreover, since Java 8, all primitive wrapper classes (except Boolean) accept a BYTES constant, which gives data type's size in bytes. Then you lot can use that besides one time you have been moved to Java viii. Following is a trivial Coffee program demonstrating the size of primitive information types through their primitive wrappers.

              grade              SizePrimitiveTypes              {              public              static              void              principal              (              String              [              ]              args)              {              Organisation.out.println              (              "Size of byte: "              +              (              Byte.SIZE              /              8              )              +              " bytes."              )              ;              Organization.out.println              (              "Size of short: "              +              (              Brusque.SIZE              /              viii              )              +              " bytes."              )              ;              System.out.println              (              "Size of int: "              +              (              Integer.SIZE              /              8              )              +              " bytes."              )              ;              Organisation.out.println              (              "Size of long: "              +              (              Long.SIZE              /              8              )              +              " bytes."              )              ;              System.out.println              (              "Size of char: "              +              (              Character.SIZE              /              8              )              +              " bytes."              )              ;              System.out.println              (              "Size of float: "              +              (              Bladder.SIZE              /              eight              )              +              " bytes."              )              ;              Arrangement.out.println              (              "Size of double: "              +              (              Double.SIZE              /              8              )              +              " bytes."              )              ;              }              }              OUTPUT              ======              D:\JavaPrograms>javac SizePrimitiveTypes.java              D:\JavaPrograms>java SizePrimitiveTypes Size of              byte              :              1              bytes.              Size              of              curt              :              2              bytes.              Size              of              int              :              4              bytes.              Size              of              long              :              8              bytes.              Size              of              char              :              two              bytes.              Size              of              bladder              :              4              bytes.              Size              of              double              :              8              bytes.

Notation that size of primitive types in Java is always the same. It is not platform dependent. Also, all primitive information types in Java are signed. Coffee does not support unsigned types.

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