[08001] Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections. java.net.ConnectException: Connection refused: connect.

• 0 vote107 views1 answer

  How many of a char in a string java

  Java
• 1 vote115 views1 answer

  Java jcombobox itemlistener only if value changed

  Java
• 1 vote119 views1 answer

  Compare numbers in array in java

  Java
• 3 votes128 views2 answers

  Java create file in folder

  Java
• 0 vote131 views1 answer

  In java write a code that suppose the following input is supplied to the program: 9 Then, the output should be: 12096 (99+999+9999+999)

  Java
• 6 votes118 views2 answers

  How to add java_home in mac

  Java
• 0 vote125 views1 answer

  Spring websocket allow origin

  Java
• 3 votes127 views1 answer

  Float random class java

  Java
• 0 vote137 views1 answer

  Use regex in if statement java

  Java
• 0 vote116 views4 answers

  Ticket sales java program

  Java