classMemory{publicstaticvoidmain(String[]args){//line 1int i=1;//line 2Object obj=newObject();//line 3Memory mem=newMemory();//Line 4mem.foo(obj);//Line 5}//Line 9privatevoidfoo(Object param){//line 6String str=param.toString();//line 7System.out.println(str);}//Line 8} ...
type_str: 'm3u8', })) break } } } catch (e) { log.log(e.toString()) 40 changes: 27 additions & 13 deletions 40 electron/main/utils.ts Original file line numberDiff line numberDiff line change @@ -1,8 +1,9 @@ import fs from 'fs' import {Transform } from 'stream' import...
April 8, 2024Ribhu SharmaGST India, Informative GST Articles 4 Minutes Read In some cases, a registered person comes under an obligation to pay tax on a reverse charge basis. Table 4G in GSTR 9 encompasses details of such inward supplies which makes a registered person liable to pay tax ...
*/publicclassStringTest3{publicstaticvoidmain(String[]args){//使用Set保持着常量池引用,避免full gc回收常量池行为Set<String>set=newHashSet<String>();//在short可以取值的范围内足以让6MB的PermSize或heap产生OOM了。short i=0;while(true){set.add(String.valueOf(i++).intern());}}} 结果: 代码语...
如果你使用的 JDK 8u20,那么可以使用下面的 JVM 参数开启 G1 垃圾回收器,并开启字符串去重功能 -XX:+UseG1GC -XX:+UseStringDeduplication 原理是让多个字符串对象引用同一个 char[] 来达到节省内存的目的 特点 由G1 垃圾回收器在 minor gc 阶段自动分析优化,不需要程序员自己干预 ...
非标准$1, $2, $3, $4, $5, $6, $7, $8, $9 属性是包含括号子串匹配的正则表达式的静态和只读属性 这些属性可以在String.replace 方法中替换字符串. 在这种情况下, 不用在前面加上 RegExp 指的是与正则表达式匹配的第一个 子匹配(以括号为标志)字符串,以此类推,RegExp.$2,RegExp.$3,…RegExp...
8 0x0100 No subsetting: When this bit is set, the font must not be subsetted prior to embedding. Other embedding restrictions specified in bits 0 – 3 and bit 9 also apply. 9 0x0200 Bitmap embedding only: When this bit is set, only bitmaps contained in the font may be embedded. No...
We read every piece of feedback, and take your input very seriously. Include my email address so I can be contacted Cancel Submit feedback Saved searches Use saved searches to filter your results more quickly Cancel Create saved search Sign in Sign up Reseting focus {...
String 在 jdk8 及以前内部定义了private final char[] value用于存储字符串数据。 JDK9 时改为 byte[] 为什么JDK9改变了结构⟳ 官方说明:http://openjdk.java.net/jeps/254 String 类的当前实现将字符存储在 char 数组中,每个字符使用两个字节(16 位)。从许多不同的应用程序收集的数据表明,字符串是堆使用...
jdk8及以前,内部定义了final char[] value用于存储字符串数据 jdk9类型更改:private final char value[];–>private final byte[] value; char数组每个字符占两个字节16位,String是堆空间的主要部分,大部分是拉丁字符,占一个字节,节省空间 String再也不用char[] 来存储,改成了byte [] 加上编码标记 ...