add comment block to methods in Eclipse

How to add comment block to methods in Eclipse..

Source -> Generate element comment

 

/**

*

*comment

*

*/

public void tets(){

 

}

An internal error occurred during: "Importing Maven projects". Unsupported IClasspathEntry kind=4 fixed

You might have used this command "mvn install" and then you have imported this project in to the eclipse.

 to solve this

 1)Right-click on your project, select Maven -> Remove Maven Nature.
 2)Open you terminal, go to your project folder and do “mvn eclipse:clean”
 3)Right click on your Project and select “Configure -> Convert into Maven Project” This is the error to solve this use above steps.









string-pattern-matched-in-java.html

string pattern matched in java

string pattern in java

public class RegexMatches {
public static void main( String args[] ){
 // String to be scanned to find the pattern.
String line = "xxxx123@gmail.com";
String pattern = "@gmail.com";

if(line.endwith(pattern ))
{
 sysout("Matched");

     }else{
 sysout("Not Matched");
}
}
}

boolean check in if in java

boolean isS
if (status) { //positive work } else { // negative work }

string is null or empty check in java

string null check in java

If we want to check weather string is empty or not then use the

String  str ="null";

if(str != null && !str.isEmpty())
{
 sysout("null");
}
else{
 sysout("not null");

}

Split string using regular expression in java

How Split string using regular expression in java

 

public class RegEX {

      

       public static void main(String[] args) {

             String pattern = "([\\s+])";          

              String test="Have Nice Day ";

                 for(String token : test.split(pattern))

                     System.out.println(token);

                

       }

}

======================================

Result :
 

Have 

Nice

Day

======================================