package 數(shù)據(jù)類型;
//布爾類型
class BoolTest {
?public static void main(String args[]){
??boolean b;
??
??b = false;
??System.out.println("b is " + b);
??b = true;
??System.out.println("b is " + b);//布爾型顯示為true和false
??
??if(b) System.out.println("this is not executed.");//布爾本身可以空if語句，不用寫成if(b == true)
??System.out.println("10 > 9 is " + (10>9));// > 符號返回類型為布爾型
?}
}