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// eg1
// user input > 100?
import java.util.Scanner;
// 3 blocks
// 1 class definition / define class
// 2 define 'main' method
// 3 within 'condition clause'
public class Example {
public static void main(String[] args) {
Scanner reader = new Scanner(System.in);
System.out.print("Give a number: ");
int num = Integer.valueOf(reader.nextLine());
if (num > 100) {
System.out.println("Number was greater than 100.");
}
}
}
// eg2
// else
import java.util.Scanner;
public class Example {
public static void main(String[] args) {
Scanner reader = new Scanner(System.in);
System.out.print("Give a number: ");
int num = Integer.valueOf(reader.nextLine());
if (num > 100){
System.out.println("Number was greater than 100.");
} else {
System.out.println("Number was lesser than or equal to 100.");
}
}
}
Example output:
Give a number: 54
Number was lesser than or equal to 100.
// eg3
// else if
import java.util.Scanner;
public class Example {
public static void main(String[] args) {
Scanner reader = new Scanner(System.in);
System.out.print("Give a number: ");
int num = Integer.valueOf(reader.nextLine());
if (num < 0){
System.out.println("Number was negative.");
} else if (num > 0) {
System.out.println("Number was positive.");
} else {
System.out.println("Number was zero.");
}
}
}
Example output:
Give a number: 15
The number was positive.
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