Question

(Scanner Input=new Scanner(System.in))

I have a while loop in my program with Input.hasNext() condition.
I want to read a line with scanner without Input.nextLine(); because i want to use the strings and integers in that line with .next() & .nextInt() ,how can i break the while loop after reading one line, or how can I break the while loop with entering newline character?

while (Input.hasNext()) {
    if (Input.hasNextFloat()) {
      Grade=Input.nextFloat();
      P.setGrades(Grade);
      j=0;k=1;
      continue;
    }
    if (k==1) {
      P.getGPA();
      P=new Person();
      k=0;
    }
    if (j==1) {
      P.setLastName(Input.next());
      continue;
    }
    P.setFirstName(Input.next());
    i++;
    j=1;
} 

Answer 1

if you only want 1 line read in 1 line and then parse the line

String line = Input.nextLine();
Scanner lineScanner = new Scanner(line);//Scanner can also work on a String instead of a InputStream
while(lineScanner .hasNext()){
    if(lineScanner .hasNextFloat()){
      Grade=lineScanner .nextFloat();
      P.setGrades(Grade);
      j=0;k=1;
      continue;}
    if(k==1){
      P.getGPA();
      P=new Person();
      k=0;}
    if(j==1){
      P.setLastName(lineScanner .next());
      continue;}
    P.setFirstName(lineScanner .next());
    i++;
    j=1;
}