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How to use Java switch

The switch statement in Java is used to execute different blocks of code based on different conditions. If you want to know more about switch, you can read the article below this topic.

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time：2024-03-13 09:49:15

Java Switch statement (detailed usage explanation) Switch statement is used to make decisions in Java. Unlike if-then and if-then-else statements, a switch statement can have many possible execution paths.

Java Switch语句

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What is the usage of Java switch? The switch statement in Java is used to execute different blocks of code based on different conditions. The basic syntax of the switch statement is "switch (expression) {case value1:// execute code block 1break; case value2:// execute code block 2break;...default:// execute default code block break;}".

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What is the syntax for using switch in java switch (expression) {case constant expression 1: statement 1; ...case constant expression 2: statement 2; default: statement;} default means that if there is no matching case, it will be executed. Default is not necessary. The statement after the case does not need braces. The judgment condition of the switch statement can accept int, byte, char, short, but cannot accept other types. Once the case matches, the following program code will be executed sequentially, regardless of whether the following cases match. Until break is encountered, this feature can be used to allow several cases to execute the same statement. For example: switch(x){case1:c

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How to use switch statement in Java and examples Note 1. In the switch statement, the variable type can be: byte, short, int or char. Since JavaSE7, switch supports the String type, and case labels must be string constants or literals. 2. A switch sentence can have multiple case sentences. Each case is followed by a value and a colon. 3. The switch sentence can contain a default branch, which is usually the last branch of the switch sentence (can be at any position, but usually at the last one). When default is executed, the value of no case statement is equal to the variable value. The default branch does not require a break statement. Example Scann

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Switch case statement problem in Java Usage of switch case statement in Java: 1. The switch statement can have multiple case statements; 2. The data type of the value in the case statement must be the same as the data type of the variable, and can only be a constant or literal constant; 3. When When the break statement is reached, the switch statement terminates.

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