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In this core java programming tutorial we will write a program to Take a String and replace all vowels into Capital case in java
Take a String and replace all vowels into Capital case in java -
Example -
original string = java made so easy
After replacing all vowels into capital case = jAvA mAdE sO EAsy
I have written program in 2 ways.
Program/ example 1 - Take a String and replace all vowels into Capital case in java using replaceAll method of String class.
/** Copyright (c), AnkitMittal JavaMadeSoEasy.com */
public class ReplaceAllVowelsIntoCapitalCaseExample {
public static void main(String[] args) {
String str = "java made so easy";
System.out.println("original string = " + str);
System.out.println("After replacing all vowels into capital case = " +
str.replaceAll("a", "A").replaceAll("e", "E")
.replaceAll("i", "I").replaceAll("o", "O")
.replaceAll("u", "U"));
}
}
/* OUTPUT
original string = java made so easy
After replacing all vowels into capital case = jAvA mAdE sO EAsy
*/
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Program/ example 2 - Take a String and replace all vowels into Capital case in java using switch case.
/** Copyright (c), AnkitMittal JavaMadeSoEasy.com */
public class ReplaceAllVowelsIntoCapitalCaseExample1 {
public static void main(String[] args) {
String str = "java made so easy";
System.out.println("original string = " + str);
char c1[] = str.toCharArray();
for (int i = 0; i < c1.length; i++) {
switch (c1[i]) {
case 'a':
c1[i] = (char) (c1[i] - 32);
break;
case 'e':
c1[i] = (char) (c1[i] - 32);
break;
case 'i':
c1[i] = (char) (c1[i] - 32);
break;
case 'o':
c1[i] = (char) (c1[i] - 32);
break;
case 'u':
c1[i] = (char) (c1[i] - 32);
break;
}
}
str = new String(c1);
System.out.println("After replacing all vowels into capital case = "
+ str);
}
}
/* OUTPUT
original string = java made so easy
After replacing all vowels into capital case = jAvA mAdE sO EAsy
*/
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So in this core java programming tutorial we wrote a program how to Take a String and replace all vowels into Capital case in java
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Core Java
Level1 programs (beginners)