Java if条件语句

package test;

import java.util.Scanner;

import org.junit.Test;

public class JTest {
@Test
public void test1(){
System.out.print("请输入一个整数a:");
int num1 = new Scanner(System.in).nextInt();
System.out.print("请输入一个整数b:");
int num2 = new Scanner(System.in).nextInt();
if (num1 > num2) {
System.out.println(num1);
} else {
System.out.println(num2);
}

    }
@Test
public void test2(){
System.out.println("请输入一个整数：");
int x = new Scanner(System.in).nextInt();

if (x >= 0 && x < 20) {
System.out.println("是");
}
}

}