Page 190 - PowerPoint Presentation

CAVITE STATE UNIVERSITY
T3 CAMPUS
Department of Information Technology COSC 65 – Programming Languages

Java Switch Statement
The Java switch statement executes one statement from multiple conditions. It is like
if-else-if ladder statement. The switch statement works with any data type like int, char, string
and more.
In other words, the switch statement tests the equality of a variable against multiple
values.

//Syntax

switch (expression) {
case value1:
// code to be executed
break; public class SwitchExample {
case value2: public static void main(String[] args) {
// code to be executed
break; int num=20;
.. char a= ‘A’;
default: string h= “Hello”;
// code to execut if all cases are not
matched switch (num) { // can be change by a or h.
} case 10:
System.out.println(“The number is 10”);
break;
NOTE:
If char is used as the data type in case 20:
switch statement, we should add System.out.println(“The number is 20”);
single apostrophe (‘ ‘ ) . break;

Example: case 30:
switch (variable_name): System.out.println(“The number is 30”);
case ‘A’ or ‘+’ : break;
System………
break;
default:
If string is used as the data type in System.out.println(“Invalid”);
switch statement, we should add break;
double apostrophe (“ “). }
}
Example: }

switch(variable_name):
case “String”:
System…..
break;

Discussion: On you own words, what is the importance of using conditional statements in a
program.
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