Java If ... Else

If: Use if to specify a block of code to be executed, if a specified condition is true else: Use else to specify a block of code to be executed, if the same condition is false else if: Use else if to specify a new condition to test, if the first condition is false public class Triangle { //traingle check static int a = 60, b = 60, c = 60; public static void main(String[] args) { if (a + b + c == 180) { System.out.println("Traingle"); } else { System.out.println("its not traingle"); } } } Example 2: public class CharacterisVowelOrConstants { static char ch = 'w'; public static void main(String[] args) { if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') { System.out.println("Vowels"); } else { System.out.println("Constants"); } } } Example 3: package conditionalStatement; public class DayofTheWeek { static int day=3; public static void main(String[] args) { if (day == 1) { System.out.println("Sunday"); } else if (day == 2) { System.out.println("Monday"); } else if (day == 3) { System.out.println("TuesDay"); } else if (day == 4) { System.out.println("WednesDay"); } else if (day == 5) { System.out.println("ThursDay"); } else if (day == 6) { System.out.println("Friday"); } else if (day == 7) { System.out.println("Saturday"); } else { System.out.println("NoDays"); } } } Example 4: package conditionalStatement; public class EvenorOdd { static int number = 192; public static void main(String[] args) { if (number % 2 == 0) { System.out.println("Even"); } else { System.out.println("odd"); } } } Example 5: package conditionalStatement; public class GradingSystem { static int mark = 70; public static void main(String[] args) { if (mark >= 70 || mark==100) { //50 big 70 and 50 equal 100 System.out.println("A Grade"); } else if(mark>60&&mark==70) { System.out.println("B Grade"); } else if (mark>35||mark==60) { System.out.println("C Grade"); } else if(mark>101) { System.out.println("Wrong Input"); } else { System.out.println("Fail"); } } } Example 6: public class LargestOfThreeNumber { static int a = 1180; static int b = 1180; static int c = 11830; public static void main(String[] args) { if (a > b && a > c) {// 100 big 90 t 100>80 t System.out.println("a is greater"); } else if (b > c && b > a) { //90 big 80 =true 100 big 90 true System.out.println("B is greater"); } else if (c > a && c > b) { System.out.println("C is greater"); } else { System.out.println("all are equal"); } } } Example 7: package conditionalStatement; public class LargestOfTwoNumbers { static int a = 30; static int b = 30; public static void main(String[] args) { if (a > b) { // 10 big 110 System.out.println("a is largest"); } else if (a == b) { System.out.println("a and b is equals"); } else { System.out.println("b is largest"); } } } Example 8: package conditionalStatement; public class LeapYearCheck { static int year = 2824; public static void main(String[] args) { LeapYearCheck lp = new LeapYearCheck(); if (lp.year % 4 == 0 && (lp.year % 400 == 0 || lp.year != 0)) { System.out.println("leap year"); } else { System.out.println("this is Not Leap Year"); } } } //100 diviede 0 numbers and 400 divede panna 0 Example 9: package conditionalStatement; public class MonthCheck { static int month=4; public static void main(String[] args) { if(month>1) { System.out.println(""); } } } Example 10: package conditionalStatement; public class SimpleNumberComparision { int number = -90; public static void main(String[] args) { SimpleNumberComparision numbers=new SimpleNumberComparision(); if(numbers.number>0) { System.out.println("positive"); } if (numbers.number==0) { System.out.println("Equeal"); } else if(numbers.number

Apr 29, 2025 - 09:13

If:
Use if to specify a block of code to be executed, if a specified condition is true
else:
Use else to specify a block of code to be executed, if the same condition is false
else if:
Use else if to specify a new condition to test, if the first condition is false

public class Triangle {
//traingle check
    static int a = 60, b = 60, c = 60;

    public static void main(String[] args) {
        if (a + b + c == 180) {
            System.out.println("Traingle");
        }
        else {
            System.out.println("its not traingle");
        }
    }
}

Example 2:

public class CharacterisVowelOrConstants {
    static char ch = 'w';

    public static void main(String[] args) {
        if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
            System.out.println("Vowels");
        } else {
            System.out.println("Constants");
        }

    }

}

Example 3:

package conditionalStatement;

public class DayofTheWeek {
    static int day=3;
    public static void main(String[] args) {
        if (day == 1) {
            System.out.println("Sunday");
        } else if (day == 2) {
            System.out.println("Monday");
        } else if (day == 3) {
            System.out.println("TuesDay");
        } else if (day == 4) {
            System.out.println("WednesDay");
        } else if (day == 5) {
            System.out.println("ThursDay");
        } else if (day == 6) {
            System.out.println("Friday");
        } else if (day == 7) {
            System.out.println("Saturday");
        } else {
            System.out.println("NoDays");
        }
    }

}
Example 4:

package conditionalStatement;

public class EvenorOdd {
static int number = 192;

public static void main(String[] args) {
    if (number % 2 == 0) {
        System.out.println("Even");

    } else {
        System.out.println("odd");
    }
}

}

Example 5:

package conditionalStatement;

public class GradingSystem {
static int mark = 70;

public static void main(String[] args) {
    if (mark >= 70 || mark==100) {  //50 big 70 and 50 equal 100
        System.out.println("A Grade");
    }
    else if(mark>60&&mark==70) {
        System.out.println("B Grade");
    }
    else if (mark>35||mark==60) {
        System.out.println("C Grade");
    }
    else if(mark>101) {
        System.out.println("Wrong Input");
    }
    else {
        System.out.println("Fail");
    }
}

}

Example 6:

public class LargestOfThreeNumber {
static int a = 1180;
static int b = 1180;
static int c = 11830;

public static void main(String[] args) {
    if (a > b && a > c) {// 100 big 90 t 100>80 t
        System.out.println("a is greater");
    } else if (b > c && b > a) { //90 big 80 =true  100 big 90  true
        System.out.println("B is greater");
    } else if (c > a && c > b) {
        System.out.println("C is greater");
    }
    else {
        System.out.println("all are equal");
    }
}

}

Example 7:

package conditionalStatement;

public class LargestOfTwoNumbers {
static int a = 30;
static int b = 30;

public static void main(String[] args) {
    if (a > b) { // 10 big 110
        System.out.println("a is largest");
    } else if (a == b) {
        System.out.println("a and b is equals");
    } else {
        System.out.println("b is largest");
    }
}

}

Example 8:

package conditionalStatement;

public class LeapYearCheck {
static int year = 2824;

public static void main(String[] args) {
    LeapYearCheck lp = new LeapYearCheck();
    if (lp.year % 4 == 0 && (lp.year % 400 == 0 || lp.year != 0)) {
        System.out.println("leap year");
    } else {
        System.out.println("this is Not Leap Year");
    }
}

}

//100 diviede 0 numbers and 400 divede panna 0

Example 9:

package conditionalStatement;

public class MonthCheck {
static int month=4;
public static void main(String[] args) {
if(month>1) {
System.out.println("");
}
}

}

Example 10:

package conditionalStatement;

public class SimpleNumberComparision {
int number = -90;

public static void main(String[] args) {
    SimpleNumberComparision numbers=new SimpleNumberComparision();
    if(numbers.number>0) {
        System.out.println("positive");
    }
 if (numbers.number==0) {
        System.out.println("Equeal");
    }
    else if(numbers.number<0) {
        System.out.println("negative");
    }
}

}