Computer Applications

State the data type and value of res after the following is executed:


char ch = '9';
res= Character.isDigit(ch);

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Data type of res is boolean as return type of method Character.isDigit() is boolean. Its value is true as '9' is a digit.

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char ch='B',
char chr=Character.toLowerCase(ch); 
int n=(int)chr-10; 
System.out.println((char)n+"\t"+chr);