try catch java
public class MyClass {
public static void main(String[ ] args) {
try {
int[] myNumbers = {1, 2, 3, 4, 5, 6};
System.out.println(myNumbers[10]);
} catch (Exception e) {
System.out.println("Something went wrong. check again");
}
}
}java try catch
try {
// Code to try, which is throwing an Exception, e.g.
/*example*/ Thread.sleep(100)
} catch (InterruptedException e /*Or any other exception*/) {
// Handle Exception, usually:
e.printStackTrace(); // Print the StackTrace of the exception to see what cause it
} finally {
// Code executed after try / catch, used to close streams
/*example*/ in.close();
}java throw an exception
public static void main(String[] args) {
Scanner kb = new Scanner(System.in);
System.out.println("Enter a number");
try {
double nb1 = kb.nextDouble();
if(nb1<0)
throw new ArithmeticException();
else System.out.println( "result : " + Math.sqrt(nb1) );
} catch (ArithmeticException e) {
System.out.println("You tried an impossible sqrt");
}
}Java try catch Syntax
try {
// Block of code to try
}
catch(Exception e) {
// Block of code to handle errors
}try catch in java
try block: code that is protected for any exceptions. and it is mandatory
(only try)
catch block: if any exception happens during runtime in the try block,
the catch block will catch that exception.
if any exception happens during runtime in the try block,
control will be given to catch block.
An optional finally block gives us a chance to run the code which
we want to execute EVERYTIME a try-catch block is completed
– either with errors or without any error.Copyright © 2021 Codeinu
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