The switch statement allows us to execute a block of code among many alternatives. Show The syntax of the switch statement in Java is: switch (expression) { case value1: // code break; case value2: // code break; ... ... default: // default statements }How does the switch-case statement work? The expression is evaluated once and compared with the values of each case.
Note: The working of the switch-case statement is similar to the Java if...else...if ladder. However, the syntax of the switch statement is cleaner and much easier to read and write. Example: Java switch Statement// Java Program to check the size // using the switch...case statement class Main { public static void main(String[] args) { int number = 44; String size; // switch statement to check size switch (number) { case 29: size = "Small"; break; case 42: size = "Medium"; break; // match the value of week case 44: size = "Large"; break; case 48: size = "Extra Large"; break; default: size = "Unknown"; break; } System.out.println("Size: " + size); } }Output: Size: LargeIn the above example, we have used the switch statement to find the size. Here, we have a variable number. The variable is compared with the value of each case statement. Since the value matches with 44, the code of case 44 is executed. size = "Large"; break;Here, the size variable is assigned with the value Large. Recommended Reading: Create a Simple Calculator Using the Java switch Statement Flowchart of switch Statement break statement in Java switch...caseNotice that we have been using break in each case block. The break statement is used to terminate the switch-case statement. If break is not used, all the cases after the matching case are also executed. For example, class Main { public static void main(String[] args) { int expression = 2; // switch statement to check size switch (expression) { case 1: System.out.println("Case 1"); // matching case case 2: System.out.println("Case 2"); case 3: System.out.println("Case 3"); default: System.out.println("Default case"); } } }Output Case 2 Case 3 Default caseIn the above example, expression matches with case 2. Here, we haven't used the break statement after each case. Hence, all the cases after case 2 are also executed. This is why the break statement is needed to terminate the switch-case statement after the matching case. To learn more, visit Java break Statement. default case in Java switch-caseThe switch statement also includes an optional default case. It is executed when the expression doesn't match any of the cases. For example, class Main { public static void main(String[] args) { int expression = 9; switch(expression) { case 2: System.out.println("Small Size"); break; case 3: System.out.println("Large Size"); break; // default case default: System.out.println("Unknown Size"); } } }Output Unknown SizeIn the above example, we have created a switch-case statement. Here, the value of expression doesn't match with any of the cases. Hence, the code inside the default case is executed. default: System.out.println("Unknown Size);
class Maxoftwo { public static void main(String args[]) { //taking value as command line argument. //Converting String format to Integer value int i = Integer.parseInt(args[0]); int j = Integer.parseInt(args[1]); if(i> j) System.out.println(i+" is greater than "+j); else System.out.println(j+" is greater than "+i); } } OUTPUT: Note: C:\>java> is a directory where source and class files exist.
We will first take two numbers as input from user using scanf function. Then we print the maximum number on screen using switch case statement. #include <stdio.h> #include <conio.h> int main() { int a, b; /* Take two numbers as input from user using scanf function */ printf("Enter Two Integers\n"); scanf("%d %d", &a, &b); switch(a > b) { /* a>b comparison returns true(1) */ case 1: printf("%d is Maximum", a); break; /* a>b comparison returns false(0) */ case 0: printf("%d is maximum", b); break; } getch(); return 0; } Output Enter Two Integers 4 8 8 is Maximum Enter Two Integers -2 -4 -2 is MaximumRelated Topics Page 2
In this program, we will use conditional operator to find maximum of two numbers. #include <stdio.h> int main() { int a, b, maximum; /* Take two numbers as input from user using scanf function */ printf("Enter Two Integers\n"); scanf("%d %d", &a, &b); if(a == b){ printf("Both Equal\n"); return 0; } /* Finds maximum using Ternary Operator */ maximum = (a > b) ? a : b; printf("%d is Maximum\n", maximum); return 0; } Output Enter Two Integers 10 14 14 is MaximumRelated Topics Write a C program to input two numbers from user and find maximum between two numbers using switch case. How to find maximum or minimum between two numbers using switch case. Logic to find maximum between two numbers using switch case in C programming. Example Output Maximum: 40In my previous posts, I explained various ways to find maximum or minimum using other approaches.
In this post I will explain to find maximum using switch...case. Finding maximum using switch...case is little tricky and under-the-hood concept. So, let us begin with prerequisites first. Required knowledgeBasic C programming, Relational operator, Switch case statement Logic to find maximum using switch...case statementIn all our previous exercises on switch...case we switched variable value. However, you can also write an expression inside switch. The expression num1 > num2 evaluates 1 if num1 is greater than num2 otherwise evaluates 0. So if we write switch(num1 > num2), there can be two possible cases case 0 and case 1. Step by step descriptive logic to find maximum using switch...case.
Important note: There is no possibility of default case in this program. Program to find maximum using switch...case statement/** * C program to find maximum between two numbers using switch case */ #include <stdio.h> int main() { int num1, num2; /* Input two numbers from user */ printf("Enter two numbers to find maximum: "); scanf("%d%d", &num1, &num2); /* Expression (num1 > num2) will return either 0 or 1 */ switch(num1 > num2) { /* If condition (num1>num2) is false */ case 0: printf("%d is maximum", num2); break; /* If condition (num1>num2) is true */ case 1: printf("%d is maximum", num1); break; } return 0; }Enter two numbers to find maximum: 20 10 20 is maximum Happy coding 😉 |
Write a program to find maximum between two numbers using switch case in Java
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