The document discusses different types of decision making statements in Java programming including if, else if, nested if, and switch statements. If statements execute code based on boolean conditions, else if allows for multiple conditions to be checked, and nested if allows if statements within other if statements. Switch statements check variable values against case labels and execute corresponding code blocks. Decision making is used in programming to control program flow and logic based on evaluated conditions.

1. Decision Making in Java
•if statement
•else if statement
•If else if statement
•Nested if statements
•Switch Statement
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2. Decision Making
• In decision making there are one or more
conditions to be checked during the execution
of a program.
• The decision depends upon our conditions as
it may return true or false result.
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3. If statement
If statement is used to check one or more
Boolean conditions to execute a block of
statements or code.
• Syntax: if(Boolean Statements){//code body to
be executed if the statement is true}
E.g: if(a>11){
System.out.println(“Your
Condition is true”);}
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4. If else statement
• An if statement can be followed by the else statement if
statement will be executed when your condition is true
and in the case of the else statement it will be executed
when if’s condition will be false.
• I.E:
int a=3;
if(a>2){
System.out.println(“If is true”);}
else{
System.out.println(“If is false”);}
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5. If else if statement
• An if statement is followed by an optional else if
statement.
• One else if statement is correct than all followed
statements will not be executed.
• If(Bool Cond){}else if(cond){}else
if(cond){}……
int a=11;
If(a<11){}
else if(a<9){}…
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6. Nested If
• It means we can use if or else if inside the if
statement.
• Than all conditions will be executed
sequentially.
• If(Bool Cond){if(bool cond){}}….
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7. Switch Statement
• A value to be sated in a variable.
• And on that value conditions will be checked accordingly.
• Each value is called case, variables can be integer type, char
type or Boolean type.
• Understand syntax of the Switch statement in the following
program
I.E: int a;
Switch(a){
case ‘1’: System.out.println(“Jamsher”);}
break;
case’2’: ….}
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8. Why Decision making is used in
programming?
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