java test if a string is a int
public static boolean isInt(String str) {
try {
@SuppressWarnings("unused")
int x = Integer.parseInt(str);
return true; //String is an Integer
} catch (NumberFormatException e) {
return false; //String is not an Integer
}
}check type of variable java
public class MyClass {
public static void main(String args[]) {
int x = 5;
System.out.println(((Object)x).getClass().getSimpleName());
}
}Copyright © 2021 Codeinu
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