Java examples: While Loop vs ‘do’-while loop


While Loop

public static void whileLoop(){
System.out.println("\nEXAMPLE: While Loop");
int num = 0;
while(num <= 20) { // Check the while condition first, Then execute the loop
// Then while 'l' is less than or equal to '0'
System.out.println("num = " + num);
num++; //increment 'l' by 1
}
}

‘do’-while loop

public static void doWhileLoop() {
System.out.println("\nEXAMPLE: Do While Loop");
int num = 0;
do {
// DO the work... Execute the loop first
System.out.println("num = " + num);
num++; //increment 'l' by 1
} while(num <= 20); // Check the conditions
}

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