: ACC_PUBLIC Code: stack=1, locals=1, args_size=1 0: aload_0 1: invokespecial #1 // Method java/lang/Object."<init>":()V 4: return LineNumberTable: line 5: 0 LocalVariableTable: Start Length Slot Name Signature 0 5 0 this Lcom/dhb/test/BooleanTest; public static void main(java....
Size for LotsOfBooleans: 8257544Average size: 82.57544Size for LotsOfInts: 33599984Average size: 335.99984 Java虚拟机规范一书提到 : •在Java虚拟机中没有任何供 boolean值专用的字节码指令,Java语言表达式所操作的 boolean值,...
boolean: The boolean data type has only two possible values: true and false. Use this data type for simple flags that track true/false conditions. This data type represents one bit of information, but its "size" isn't something that's precisely defined. 上面的说的很清楚,boolean 值只有 tru...
publicbooleanisValid() { //code } 2. Java Boolean class We have a classjava.lang.Boolean(with ‘B’ in capital) in Java.Boolean classis a wrapper class provided to wrapboolean primitive value. It has a single field of type boolean. We can assign a boolean primitive values to Boolean ob...
在google中能查到一篇文章(原文地址:https://stackoverflow.com/questions/383551/what-is-the-size-of-a-boolean-variable-in-java)。里面有个高手,通过实操测试了在Sun's JDK build 1.6.0_11环境下,boolean类型到底占几个字节,实操源码如下。 class LotsOfBooleans ...
Instead, expressions in the Java programming language that operate on boolean values are compiled to use values of the Java Virtual Machine int data type. 尽管Java 虚拟机定义了一个布尔类型,但是它只提供了非常有限的支持,并【没有】专门用于对【boolean 值】进行操作的 Java 虚拟机指令。相反,Java 中...
在google中能查到一篇文章(原文地址:https://stackoverflow.com/questions/383551/what-is-the-size-of-a-boolean-variable-in-java)。里面有个高手,通过实操测试了在Sun's JDK build 1.6.0_11环境下,boolean类型到底占几个字节,实操源码如下。 classLotsOfBooleans{booleana0,a1,a2,a3,a4,a5,a6,a7,a8,a9...
从以上内容我们可以得知JAVA规范中没有定义boolean类型的大小。 这在stackoverflow中的这个问题有所提及 What is the size of a boolean variable in Java? 这里讲到 It'svirtualmachine dependent.// 由虚拟机自己实现 而我在其他地方查到了如下资料:
Java has a different approach. It has primitive data types and wrapper classes. Wrapper classes transform primitive types into objects. Wrapper classes are covered in the next chapter. Boolean values There is a duality built in our world. There is a Heaven and Earth, water and fire, jing and...
在google中能查到一篇文章(原文地址:https://stackoverflow.com/questions/383551/what-is-the-size-of-a-boolean-variable-in-java)。里面有个高手,通过实操测试了在Sun's JDK build 1.6.0_11环境下,boolean类型到底占几个字节,实操源码如下。 class LotsOfBooleans ...