Java Programming Question From (School)

  package School ; import java.util.Scanner ; public class Problem_10 { public static void main ( String [] args ) { Scanner in = new Scanner ( System . in ); int a []= new int [ 4 ]; String b []= new String [ 3 ]; int output = 0 ; int count = 0 ; int checker = 0 ; // used for capturing index System . out . println ( "Enter element " ); for ( int i = 0 ; i < 4 ; i ++){ a [ i ]= in . nextInt (); } System . out . println ( "Enter Symbol" ); for ( int i = 0 ; i < 3 ; i ++){ b [ i ]= in . next (); } for ( int i = 0 ; i < 3 ; i ++){ switch ( b [ i ]){ case "+" : if ( output == 0 ){ output += a [ i ]+ a [ i + 1 ]; checker = 2 ; } else { output += a [ checker...

  package School ; import java.util.Scanner ; public class Problem_8 { public static void main ( String [] args ) { String Data [] =new String [ 20 ]; Scanner in =new Scanner ( System . in ); System . out . println ( "Enter number of names you want to enter: " ); int input = in . nextInt (); if ( input >= 3 && input <= 20 ) { String temp ; System . out . println ( "Enter name" ); for ( int i = 0 ; i < input ; i ++ ) { Data [ i ] = in . next (); } for ( int i = 0 ; i < input ; i ++ ){ for ( int j = 0 ; j < ( input - 1 ); j ++ ) { if ( Data [ j ]. compareToIgnoreCase ( Data [ j + 1 ]) > 0 ) { temp = Data [ j ]; Data [ j ] = Data [ j + 1 ]; Data [ j + 1 ] = temp ; ...