relationaldemo.java

电子工业出版社出版的《java2应用开发指南》配套光盘源代码

//RelationalDemo.java
public class RelationalDemo 
{
    public static void main(String[] args) 
{
        //变量定义
        int i = 37;
        int j = 42;
        int k = 42;

	    //大于
        System.out.println("Greater than...");
        System.out.println("    i > j = " + (i > j));	  //false
        System.out.println("    j > i = " + (j > i));     //true
        System.out.println("    k > j = " + (k > j));     //false, they are equal

	    //大于或等于
        System.out.println("Greater than or equal to...");
        System.out.println("    i >= j = " + (i >= j));   //false
        System.out.println("    j >= i = " + (j >= i));   //true
        System.out.println("    k >= j = " + (k >= j));   //true

	    //小于
        System.out.println("Less than...");
        System.out.println("    i < j = " + (i < j));     //true
        System.out.println("    j < i = " + (j < i));     //false
        System.out.println("    k < j = " + (k < j));     //false

	    //小于或等于
        System.out.println("Less than or equal to...");
        System.out.println("    i <= j = " + (i <= j));   //true
        System.out.println("    j <= i = " + (j <= i));   //false
        System.out.println("    k <= j = " + (k <= j));   //true

	    //等于
        System.out.println("Equal to...");
        System.out.println("    i == j = " + (i == j));   //false
        System.out.println("    k == j = " + (k == j));   //true

	    //不等于
        System.out.println("Not equal to...");
        System.out.println("    i != j = " + (i != j));   //true
        System.out.println("    k != j = " + (k != j));   //false

    }
}