Advertisements
Advertisements
Questions
Write a difference between the functions isUpperCase() and toUpperCase().
Differentiate between isUpperCase() and toUpperCase().
Advertisements
Solution 1
The isuppercase() method is used to check whether the given character is in upper case or not. It returns a Boolean data type.
The toUpperCase() method is used to convert a character or string into upper case. It returns char or String type.
Solution 2
| Sr. No. | isUpperCase() | toUpperCase() |
| 1. | The isuppercase() method is used to check whether the given character is in upper case or not. It returns a Boolean data type. | The toUpperCase( ) method is used to convert a character or string into upper case. It returns char or String type. |
| 2. | This function returns true if the parameter is an uppercase letter, and false otherwise. | This function returns the supplied argument in uppercase characters. If a character is already in uppercase, it remains unchanged. If the supplied character is not a letter, it will be returned as is. |
| 3. | Syntax: |
Syntax: |
| 4. | Example: |
Example: |
APPEARS IN
RELATED QUESTIONS
Write the memory capacity (storage size) of short and float data type in bytes.
State the data type and value of res after the following is executed:
char ch = ‘t’;
res=Character. toUpperCase(ch);
State one difference between the floating point literals float and double.
What will be the output when the following code segment is executed?
String s = “1001”;
int x = Integer. valueOf(s);
double y = Double.valueOf(s);
System.out.println(“x=”+x);
System.out.println(“y=”+y);
Give the output of the following code.
String A = "26.0", B= "74.0";
double C = Double.parseDouble(A);
double D = Double.parseDouble(B);
System.out.println((C+D));
Give the output of the following Character class method:
Character.toUpperCase('a')What is the method to check whether a character is a letter or digit?
Predict the output of the following code snippet:
char ch='B';
char chr=Character.toLowerCase(ch);
int n=(int)chr-10;
System.out.println((char)n+"\t"+chr);
A student is trying to convert the string present in x to a numerical value, so that he can find the square root of the converted value, However the code has an error. Name the error (syntax/logical/runtime). Correct the code so that it compiles and runs correctly.
String x="25";
int y=Double.parseDouble(x);
double r=Math.sqrt(y);
System.out.println(r);Define a class to accept a string and convert the same to uppercase, create and display the new string by replacing each vowel by immediate next character and every consonant by the previous character. The other characters remain the same.
Example: Input: #IMAGINATION@2024
Output: #JLBFJMBSJPM@2024
