Untitled
unknown
java
a year ago
628 B
2
Indexable
Never
// Initalize addID variable to zero to only accept integer values int addID = 0; // Validation for Student ID if(in.hasNextInt()){ addID = in.nextInt(); for (int i = 0; i < studentList.size(); i++) { if (addID == studentList.get(i).getID()) { System.out.println("ID is already registered!"); Main.sysPause(); return; } } } else { System.out.println("Please enter a valid input!"); Main.sysPause(); return; }