Bar Chart Array with Java

BarChart.java

// Fig. 7.6: BarChart.java
// Bar chart printing program.
public class BarChart {
  public static void main( String[] args ) {
    
    int[] array = { 0, 0, 0, 0, 0, 0, 1, 2, 4, 2, 1 };
    
    System.out.println( "Grade distribution:" );

// for each array element, output a bar of the chart
for ( int counter = 0; counter < array.length; counter++ ) {
  // output bar label ( "00-09: ", ..., "90-99: ", "100: " )
  if ( counter == 10 )
    System.out.printf( "%5d: ", 100 );
  else
    System.out.printf( "%02d-%02d: ", counter * 10, counter * 10 + 9 );
    // print bar of asterisks
    for ( int stars = 0; stars < array[ counter ]; stars++ )
      System.out.print( "*" );
      System.out.println(); // start a new line of output
    } // end outer for
  } // end main
} // end class BarChart

/* 

Grade distribution:
00-09:
10-19:
20-29:
30-39:
40-49:
50-59:
60-69: *
70-79: **
80-89: ****
90-99: **
100: *

*/