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- A super detailed summary of JVM reflection principle technical points~
- The java basics column today introduces a very detailed summary of JVM reflection principle technical points.
- JavaBase 2344 2020-10-10 17:20:14
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- Get to know the pitfalls of Lombok
- The java basic tutorial column introduces you to the pitfalls of Lombok, which is easy to use.
- JavaBase 2727 2020-10-09 17:00:02
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- A closer look at the right and wrong ways to start threads in Java
- The java basics column introduces the correct and incorrect ways to start threads in Java.
- JavaBase 2146 2020-09-28 16:55:09
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- What is the short confession code in java
- Java short confession code: implement a text confession button, the code is [x=msgbox("Would you like to be my girlfriend?",VbYesNo)if x=VbYes then msgbox("Go and get your certificate tomorrow!")].
- JavaBase 17939 2020-09-27 15:52:14
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- Share a simple example of java polymorphism
- A simple example of Java polymorphism: first create an interface; then create two classes to determine the content of the speech; then print the time while speaking; and finally create a test class to run.
- JavaBase 4928 2020-09-27 15:27:06
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- What is the solution to java heap space error
- The solution to the java heap space error is: 1. Set the environment variable, the code is [set JAVA_OPTS= -Xms32m -Xmx512m]; 2. Add relevant parameters when executing the JAVA class file, the parameter is [java -Xms32m -Xmx800m cl] .
- JavaBase 25235 2020-09-27 15:16:17
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- How to export EXCEL table from JAVA
- How to export an EXCEL table with JAVA: first use HSSFWorkbook to open or create an "Excel file object"; then use the Sheet object to return the row object, and use the row object to get the Cell object; then read and write the Cell object; finally put the generated file into the response Front-end page.
- JavaBase 36329 2020-09-27 15:10:40
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- How to match string with java regular expression
- How to match strings with java regular expressions: use tostring, the code is [while(matcher.find()){tmp.add(matcher.group(1).toString());}].
- JavaBase 18270 2020-09-27 14:55:34
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- How to open java after installation
- How to open java after installation: first configure the JDK path, classpath, [JAVA_HOME] into computer variables; then enter cmd to enter the console, and enter [java -version] in the console; finally write a [java -version] directly locally .java] text file.
- JavaBase 28608 2020-09-27 11:46:04
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- Review the past and learn the new (2) In-depth understanding of strings in Java
- The java basic tutorial column once again summarizes strings in Java. It is still very important to change the knowledge points.
- JavaBase 1722 2020-09-19 09:36:20
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- Review the past and learn the new (1) In-depth understanding of strings in Java
- The java basic tutorial column will introduce to you: an in-depth understanding of strings in Java.
- JavaBase 2842 2020-09-19 09:08:23
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- These days, if you say you know Java, you have to know polymorphism.
- The java basic tutorial column will introduce you to polymorphism in Java.
- JavaBase 2500 2020-09-19 09:06:20
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- In java do you know what String does to '+'
- The java basic tutorial column introduces the relationship between String and "+".
- JavaBase 2078 2020-09-19 09:11:08
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- How many bytes does java char occupy?
- In java, char takes up 2 bytes. In Java, as long as it is a character, whether it is a number, English or Chinese character, it takes up two bytes. Reason: Java compiler uses Unicode encoding by default, so 2 bytes can represent all characters.
- JavaBase 3384 2020-08-22 14:52:12
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- Detailed instructions for using Flyway
- This article mainly introduces the brief introduction and use of Flyway. This article introduces you to it in great detail and has certain reference value for your study or work. Friends who need it can refer to it.
- JavaBase 3808 2020-07-28 18:31:38
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