Assume you have the following variable declarations: SimpleReader in = new Simpl

Question

Assume you have the following variable declarations:

SimpleReader in = new SimpleReader1L();

SimpleWriter out = new SimpleWriter1L();

Write program fragments (i.e., you do not need to write complete programs) that read a line of input as a String and print:

Only the uppercase letters in the String

Every second letter of the String

The String with all vowels replaced by an underscore

The number of vowels in the String

The positions of all vowels in the String

SimpleReader in = new SimpleReader1L();

SimpleWriter out = new SimpleWriter1L();

Explanation / Answer

//to get the input string

out.print("Enter the input string");
String instring = in.next();      

Only the uppercase letters in the String

for (int i=0;i<instring.length();i++){
if (Character.isUpperCase(instring.charAt(i))==true)
out.print(instring.charAt(i));
}

Every second letter of the String

for (int i=0;i<instring.length();i++){
if (i%2 == 1)
out.print(instring.charAt(i));
}

The String with all vowels replaced by an underscore

for (int i=0;i<instring.length();i++){
if (instring[i] == 'a' || instring[i] == 'e' || instring[i] == 'i' || instring[i] == 'o'|| instring[i] == 'u'
           || instring[i] == 'A' || instring[i] == 'E' || instring[i] == 'I' || instring[i] == 'O'|| instring[i] == 'U' )
out.print('_');
       else
           out.print(instring.charAt(i));
}

The number of vowels in the String

int vowel_count = 0
for (int i=0;i<instring.length();i++){
if (instring[i] == 'a' || instring[i] == 'e' || instring[i] == 'i' || instring[i] == 'o'|| instring[i] == 'u'
           || instring[i] == 'A' || instring[i] == 'E' || instring[i] == 'I' || instring[i] == 'O'|| instring[i] == 'U' )
vowel_count++;
}
out.print("Number of vowels in the string is : " + vowel_count );

The positions of all vowels in the String

out.println("The positions of vowels in the string are :");
for (int i=0;i<instring.length();i++){
if (instring[i] == 'a' || instring[i] == 'e' || instring[i] == 'i' || instring[i] == 'o'|| instring[i] == 'u'
           || instring[i] == 'A' || instring[i] == 'E' || instring[i] == 'I' || instring[i] == 'O'|| instring[i] == 'U' )
out.println(i+1);
}

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.