hakdo99

### Description Added file removeIf.md to explain the .removeIf() method as a new term entry for ArrayList in Java. The markdown file is placed under the file path content/java/concepts/array-list/terms/removeIf/removeIf.md ###...

forEach.md for ArrayList in Java

2

### Description Added file forEach.md to explain the .forEach() method as a new term entry for ArrayList in Java. The markdown file is placed under the file path content/java/concepts/array-list/terms/forEach/forEach.md ###...

add postgresql functions concept

4

### Description Add a concept entry about PostgreSQL functions. The new file is functions.md. ### Issue Solved Closes #4589 ### Type of Change - Adding a new entry ### Checklist...