Java Decision Making


Decision making arrangements have one or additional states to be assessed or tested by the program, along with a declaration or statements that are to be performed if the form is decided to be true, and optionally, other statements to be performed if the condition is concluded to be false.

Subsequent is the all-purpose form of a archetypal decision making construction originate in most of the programming languages

Java programming language applies subsequent types of decision-making statements. Click the following links to check their detail.

Sr.No.Statement & Description
1if statement

An if statement consists of a boolean expression followed by one or more statements.

2if...else statement

An if statement can be followed by an optional else statement, which executes when the boolean expression is false.

3nested if statement

You can use one if or else if statement inside another if or else if statement(s).

4switch statement

A switch statement allows a variable to be tested for equality against a list of values.

The ? : Operator

We have covered conditional operator ? : in the previous chapter which can be used to replace if...else statements. It has the following general form −

Exp1 ? Exp2 : Exp3;

Where Exp1, Exp2, and Exp3 are expressions. Notice the use and placement of the colon.

To determine the value of the whole expression, initially exp1 is evaluated.

  • If the value of exp1 is true, then the value of Exp2 will be the value of the whole expression.

  • If the value of exp1 is false, then Exp3 is evaluated and its value becomes the value of the entire expression.

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