Java Switch Statements
How to use switch statements in Java
To use switch statement in Java, you can use the following syntax:
switch (expression) {
case value1:
// code to execute if expression equals value1
break;
case value2:
// code to execute if expression equals value2
break;
// … more cases
default:
// code to execute if none of the above cases match
}
Can we pass null to a switch
No, you can not pass NULL to a switch statement as they require constant expression in its case.
Can you return to a switch statement
No, switch statements build a control flow in the program, so it can not go back after exiting a switch case.
Switch Statements in Java
The switch statement in Java is a multi-way branch statement. In simple words, the Java switch statement executes one statement from multiple conditions.
It is like an if-else-if ladder statement. It provides an easy way to dispatch execution to different parts of code based on the value of the expression. The expression can be a byte, short, char, or int primitive data type. It tests the equality of variables against multiple values.