[Eranga]

Best things is make an attempt to do something. Anyway here is a simple code, keep in mind this is not the only way to do this.

Code:

public class ArrayComparing {

    Scanner console= new Scanner(System.in);
    String[] names;
    String[] temp;
    int[] grade;
    
    public static void main(String[] args) {
        new ArrayComparing().getUserData();
    }
    
    private void getUserData() {
        names = new String[3];    
        for(int i = 0; i < names.length; i++) {
            System.out.print("Please Enter Student name: ");
            names[i] =console.nextLine();
            temp[i] = names[i];
        }
        
        grade = new int[3];    
        for(int i =0;i<grade.length;i++) {
            System.out.print("Please Enter Student marks: ");
            grade[i] =console.nextInt();
        }          
        
        sortArray(names);     
    }
    
    private void sortArray(String[] arrayToSort) {
        Arrays.sort(arrayToSort);
        
        getIndex(arrayToSort);
    }
    
    private void getIndex(String[] sortedArray) {
        for(int x = 0; x < sortedArray.length; x++) {
            for(int y = 0; y < names.length; y++) {
                if(sortedArray[x].equals(temp[y])) {
                    System.out.println(sortedArray[x] + " " + grade[y]);
                }
            }
        }
    }
}