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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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