public class PrimitiveToWrapper{
public static void main(String args[]){
//Converting int into Integer
int n=25;
Integer i=Integer.valueOf(n);//converting int into Integer
Integer j=n;//autoboxing, now compiler will write Integer.valueOf(n) internally
System.out.println(n+" "+i+" "+j);
}
}
25 25 25
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First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.