For loops are iterations that will only ever go through the code inside the loop if the condition for the loop  is true(unlike do-while). There are four parts of a for loop. Those parts are setting a variable, a conditional statement(normally with the variable you set) and some change in the variable which is always an int at least from when I have used it and the code inside the loop (the code that is repeated).

A for loop is formatted as shown:

for(int i = somenumber; i  >somenum; i++)

{//if more than one line it needs brackets

<code in loop>

}

So the int doesn’t need to be there if you’ve declared i already and you want to declare i outside the for loop if you are going to use it at some point outside the for loop because otherwise it is out of its scope since the for loop counts as brackets, the conditional operator > can be replaced with any other conditional operator, and ++ can be replaced with anything like –, +2, -6, *2, /5(remember that it’s a int though) , or % 9.

Iterations are where the code goes through the same piece until a condition is no longer met, the format of the condition and placement of the condition will vary depending on the specific statement you are using. This can be done with for, while, do-while. Iterations are also commonly called loops.

For more information go to the links below;

for statements;

while;

do-while;

for each (used with arrays);

There are three logic operators and(&) or ( | | ) and not(!). If you read the post on gates you will see that logic operators follow the same rules. Those rules being that for and it takes two conditions and both must be true for the statement to be true, while with or only one statement must be true, for the entire thing to be true. Not is where if the condition/ comparison is true then the not turns it false, while if the condition/comparison is false it turns it true.

There are several smaller things involved with logic operators. Those things are short circuit evaluation which is where the compiler doesn’t go through the entire condition because it has already determined whether or not the entire condition will be false.

A more in depth explanation is at this link:(not posted yet)

Another thing is De Morgan’s laws or !(a && b) equals ! a || !q and where !(a || b) equals !a & !b.

Alse results of logic operators will be a boolean datatype, like gates and conditions generally are.

They are the more common conditional statement. They are more common since most of the time there are only a couple of possibilities, which makes a if-else statement a better fit for the program. A switch statement is normally used when there are several possibilities that may or may not branch off.

A if  statement is formatted:

if(condition)

{

}

Else if(condition)

{

}

Else

{

}

The only necessary part of a if statement is the if(condition) because else if is only used if there are 3 or more possibilities and else is only used if you need to do something if the condition on the if isn’t true. Also the braces are only necessary if there is more than one line for the statement( if, else if, or else).  

The condition is a comparison of some sort using either some sort of equals or campareTo method or comparison operators, and they can include logical operators in case either two or more things need to be true or the outcome is the same for multiple possibilities. For example say for a dice game if you role a 3 or a 7 you win. It doesn’t make sense to use if and else if since both of those possibilities will have the same outcome, so you only you the if and just make the condition (k=7 || k=3).

Also break statements can also be used in if statements , be careful with how you use the however because a break statement breaks out of the first set of braces and only the first set of braces so depending on whether or not the if statement has braces it could break out of the if statement or say a statement containing that if statement.

So a example for the break statements is:

if(condition)// this is the if statement that the break will get out of

{

. . .

if(condition)

Break;

. . .

}

if(condition)

{

. . .

if(condition)// this is the if statement that the break will get out of

}

Break;

}

. . .

}

A good example of if statement being used is in the fc converter public method step-by-step video.

There are two main types of conditional statements in Java they are the If-else statements and the switch statements. A conditional statement essentially tests whether a expression which can have things like and(&) or(||) and not(!) as well as comparison operators(greater than, less than, equal to, ect) and things like the string method equals() .

If-else statement

switch statement:(post not ready yet)

Primitive types refers to some datatypes. Those datatypes are  boolean, char, int, double, float, long, byte, and short. These datatypes do not hold the properties of objects, like the Class type String does.Class type refers to datatypes that do hold the properties of objects.

Char is the datatype for unicode  and holds one character.

Int,double,float,long,short, and byte all refer to numbers.

Boolean is the datatype that’s value can only be true or false.