== != > < >= <=（结果都是boolean类型）
int a=10;<br> int b=20;<br> <br> boolean n1=a>b;<br> System.out.println(n1);//false<br> System.out.println(a<b);//true<br> System.out.println(a>=b); //false <br> System.out.println(a<=b);//true<br> System.out.println(a==b);//false<br> System.out.println(a!=b);//true
