decision making statement Comparison Table

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decision making statement comparison table

Subject avoid by omit have example have syntax have purpose is a subtopic of is a synonym of is a kind of have part

if statement braces if there is only one embedded statement
if (boolean expression) {
embedded statement(s)
}
to make a decision on which branch of code to follow in a program Loops and Decision Making decision making statement boolean expression

if-else statement braces if there is only one embedded statement
int testscore;
char grade;
if (testscore <= 90) {
grade = 'A';
} else if (testscore <= 80) {
grade = 'B';
} else {
grade = 'C';
}
if (boolean expression) {
if-true statement
else
if-false statement
}
to make a decision on which branch of code to follow in a program Loops and Decision Making decision making statement else block

switch-case statement using polymorphism the keyword default and the default statements if they are not needed
int month;
switch (month) {
case 1: System.out.println("January"); break;
case 2: System.out.println("February"); break;
case 3: System.out.println("March"); break;
default: System.out.println("Not January, February or March"
}
switch(integer producing expression)
{
case integer constant 1:
// statements to execute for integer 1
break;
case integer constant 2:
// statements to execute for integer 2
break;
...
default:
// statements to execute if none of the above is true
break;
}
to execute one of a choice of statements depending on the value of a variable Loops and Decision Making case statement decision making statement

try-catch-finally statement
//Any division by zero that occurs when executing the try block will result in execution of the catch block.
//Once either block completes, execution continues at the statement after the catch block.
try
{
result = numerator / denominator;
validResult = true;
}
catch (ArithmeticException e)
{
validResult = false;
}
try{
statements
} catch (exception_type1 identifier1) {
statements
} catch (exception_type2 identifier2) {
statements
...
} finally {
statements
}
to handle exceptions Exception Handling exception statement try block, catch block(s), finally block

Subject	avoid by	omit	have example	have syntax	have purpose	is a subtopic of	is a synonym of	is a kind of	have part
if statement		braces if there is only one embedded statement		if (boolean expression) { embedded statement(s) }	to make a decision on which branch of code to follow in a program	Loops and Decision Making		decision making statement	boolean expression
if-else statement		braces if there is only one embedded statement	int testscore; char grade; if (testscore <= 90) { grade = 'A'; } else if (testscore <= 80) { grade = 'B'; } else { grade = 'C'; }	if (boolean expression) { if-true statement else if-false statement }	to make a decision on which branch of code to follow in a program	Loops and Decision Making		decision making statement	else block
switch-case statement	using polymorphism	the keyword default and the default statements if they are not needed	int month; switch (month) { case 1: System.out.println("January"); break; case 2: System.out.println("February"); break; case 3: System.out.println("March"); break; default: System.out.println("Not January, February or March" }	switch(integer producing expression) { case integer constant 1: // statements to execute for integer 1 break; case integer constant 2: // statements to execute for integer 2 break; ... default: // statements to execute if none of the above is true break; }	to execute one of a choice of statements depending on the value of a variable	Loops and Decision Making	case statement	decision making statement
try-catch-finally statement			//Any division by zero that occurs when executing the try block will result in execution of the catch block. //Once either block completes, execution continues at the statement after the catch block. try { result = numerator / denominator; validResult = true; } catch (ArithmeticException e) { validResult = false; }	try{ statements } catch (exception_type1 identifier1) { statements } catch (exception_type2 identifier2) { statements ... } finally { statements }	to handle exceptions	Exception Handling		exception statement	try block, catch block(s), finally block

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