Computer Applications
Give the output of the following program segment:
String a="10", b="20";
int x=Integer.parseInt(a);
int y=Integer.valueOf(b);
System.out.println(x+y);
System.out.println(a+b);
Java
Java Library Classes
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Answer
30
1020
Working
Integer.parseInt and Integer.valueOf convert the strings a and b into their corresponding numeric integers. x + y adds 10 and 20 to give 30 as the output. a and b are strings so addition operator concatenates them and prints 1020.
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Related Questions
The method to convert a lowercase character to uppercase is:
- String.toUpperCase( )
- Character.isUppercase( char )
- Character.toUpperCase( char )
- toUpperCase ( )
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);