In this article, we will discuss how to enable/display line numbers in Eclipse IDE for any files like .java, .xml or .jsp

Why it is needed?

• Whenever, any exception or errors are thrown while executing Java program, then server console prints exception/error stack-trace along with its location i.e.; line number
• To fix this, we need to search using line number
• Note: by default Eclipse IDE doesn’t comes with line numbers enabled
• So, we need to explicitly enable this using 2 options

Enable Line Numbers using 2 options:

1. Using Menu option in Eclipse IDE
2. By right-clicking mouse and enabling line numbers (CTRL + F10)

Option 1: Enable using Menu option

Eclipse IDE –> Windows –> Preferences –> General –> Editors –> Text Editors –> check line number (option)

Option 2: Right-click –> enable line numbers

Alternatively, we can enable by right-clicking mouse and selecting the option “show line numbers”

Instead of right-clicking, we can also use short-cut keys supported in Eclipse IDE. Like, for enabling line numbers press CTRL + F10 simultaneously and check the option “show line numbers”

References:

• https://wiki.eclipse.org/Graphical_Eclipse_FAQs#How_do_I_show_line_numbers_in_the_Eclipse_text_editor.3F
• https://www.eclipse.org/forums/index.php/t/82856/

Happy Coding !!
Happy Learning !!