Breakpoints are most commonly used to interrupt a running program immediately before the execution of a programmer-specified instruction. This is often referred to as an instruction breakpoint. ... Breakpoints can also be used to interrupt execution at a particular time, upon a keystroke etc.

How do breakpoints work?

Software Breakpoint

They work by patching the code you are trying to execute with an instruction that triggers a debug event in some fashion. This is accomplished by injecting a breakpoint instruction or when that is not supported by inserting an instruction that causes a fault that halts the core.

What is the purpose of breakpoints in Java?

A breakpoint is a signal that tells the debugger to temporarily suspend execution of your program at a certain point in the code. To define a breakpoint in your source code, right-click in the left margin in the Java editor and select Toggle Breakpoint. Alternatively, you can double-click on this position.