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  1. import java.util.Scanner;
  2. public class MyStringMethods{	
  3.  
  4. private String myStr="";
  5.  
  6.  
  7.  Scanner sc = new Scanner(System.in);
  8.  
  9.  public void readString()
  10.  {
  11. 	 System.out.println("Enter in the desired string:   ");
  12.      myStr = sc.nextLine();
  13.  }
  14.  public void setString(String s)
  15.  {
  16.  myStr = s;
  17.  }
  18.  public int countOccurrences (String s)
  19.  {
  20. 	 int index = 0;
  21.      int start = 0; 
  22.      int count = 0;
  23.      do {
  24.      index = myStr.indexOf( s, start);
  25.      count += 1;
  26.  
  27.      if (index >= 0)
  28.      {
  29.          start = index + 1;
  30.      }
  31.  } while (index >= 0);
  32.  
  33.     return count;
  34.      }
  35.  
  36.  public int countOccurrences (char c)
  37.  { 
  38. 	  	 int index1 = 0;
  39. 	     int start1 = 0; 
  40. 	     int count1 = 0;
  41.  
  42. 	     do {
  43. 	     index1 = myStr.indexOf( c, start1);
  44. 	     count1 += 1;
  45. 	     if (index1 >= 0)
  46. 	     {
  47. 	         start1 = index1 + 1; 
  48.  
  49.  
  50. 	     }
  51. 	 } while (index1 >= 0);
  52.  
  53. 	    return count1;
  54.  
  55. 	     }
  56.  
  57.  private static long countUpperCase(String myStr) {
  58.      return myStr.chars().filter((s)->Character.isUpperCase(s)).count();
  59.  }
  60.  
  61.  private static long countLowerCase(String myStr) {
  62.      return myStr.chars().filter((s)->Character.isLowerCase(s)).count();
  63.  }
  64.  public void printCounts(String s, char c)
  65.  {
  66.  System.out.println("***************************************");
  67.  System.out.println("Analyzing: myStr="+ myStr);
  68.  System.out.println("Number of Upper case letters="+ countUpperCase(myStr));
  69.  System.out.println("Number of Lower case letters="+ countLowerCase(myStr));
  70.  System.out.println("Number of "+ s + " is "+ countOccurrences(s));
  71.  System.out.println("Number of "+ c + " is "+ countOccurrences(c));
  72.  }
  73. public static void main(String[] args) {
  74.  MyStringMethods msm = new MyStringMethods();
  75.  msm.readString();
  76.  msm.printCounts("big", 'a');
  77.  
  78.  msm.setString("Parked in a van down by the river bank .... The van evan vanished near a lot of other vans");
  79.  msm.printCounts("van", 'a');
  80.  
  81.  MyStringMethods msm2 = new MyStringMethods();
  82.  msm2.setString("the elephant in the room wouldn't budge");
  83.  msm2.printCounts("the", 'i');
  84. }
  85. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Aardvarks get big and bigger as You feed them big and bigger ants who Feed on apples.
compilation info 
Main.java:2: error: class MyStringMethods is public, should be declared in a file named MyStringMethods.java
public class MyStringMethods{	
       ^
1 error
stdout
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Standard output is empty
https://ideone.com/0Hadte
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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