Program to demonstrate initialization of local variables and usage in Java
public class LocalFields {
public static void main(String[] args) {
int local; //uninitialized local variable
int field = 10;
if(field > 10){
local = 10;
}
if(field < 10){
local = 11;
}
if(field == 10){
local = 12;
}
// below lines throws compile time error because
//compiler doesn't computes that which if will execute
//it sees that local is been used without being initialized
System.out.println("The value of local is : " + local);
}
}
The correct implementation of the program :
public class LocalFields {
public static void main(String[] args) {
int local= 0; // always initialize local variables
// before use
int field = 10;
if(field > 10){
local = 10;
}
if(field < 10){
local = 11;
}
if(field == 10){
local = 12;
}
System.out.println("The value of local is : " + local);
}
}
Output of the program : 
