练习.显示逻辑运算符的真值表&(显示true,false → 显示1,0)

原型：

 1 package com.java7;
 2 // Try this 2-2: a truth table for the logical operators.
 3 public class LogicalOpTable {
 4     public static void main(String[] args) {
 5
 6         boolean p, q;
 7
 8         System.out.println("p\tQ\tAND\tOR\tXOR\tNOT");
 9
10         p = true; q = true;
11         System.out.print(p + "\t" + q + "\t");
12         System.out.print((p&q) + "\t" + (p|q) + "\t");
13         System.out.println((p^q) + "\t" + (!(p&q)));
14
15         p = true; q = false;
16         System.out.print(p + "\t" + q + "\t");
17         System.out.print((p&q) + "\t" + (p|q) + "\t");
18         System.out.println((p^q) + "\t" + (!(p&q)));
19
20         p = false; q = true;
21         System.out.print(p + "\t" + q + "\t");
22         System.out.print((p&q) + "\t" + (p|q) + "\t");
23         System.out.println((p^q) + "\t" + (!(p&q)));
24
25         p = false; q = false;
26         System.out.print(p + "\t" + q + "\t");
27         System.out.print((p&q) + "\t" + (p|q) + "\t");
28         System.out.println((p^q) + "\t" + (!(p&q)));
29     }
30 }

执行结果：

修改为显示1,0(方法1)：

  1 package com.java7;
  2 // Try this 2-2: a truth table for the logical operators.
  3 public class LogicalOpTable10Method1 {
  4     public static void main(String[] args) {
  5
  6         boolean p, q;
  7         int o ,z;
  8         o = 1;
  9         z = 0;
 10
 11         System.out.println("p\tQ\tAND\tOR\tXOR\tNOT");
 12
 13         // true; true
 14         p = true; q = true;
 15         if(p == true){
 16             System.out.print(o + "\t");
 17         }else{
 18             System.out.print(z + "\t");
 19         }
 20         if(q == true){
 21             System.out.print(o + "\t");
 22         }else{
 23             System.out.print(z + "\t");
 24         }
 25         if(p & q == true){
 26             System.out.print(o + "\t");
 27         }else{
 28             System.out.print(z + "\t");
 29         }
 30         if(p | q == true){
 31             System.out.print(o + "\t");
 32         }else{
 33             System.out.print(z + "\t");
 34         }
 35         if(p ^ q == true){
 36             System.out.print(o + "\t");
 37         }else{
 38             System.out.print(z + "\t");
 39         }
 40         if(!(p & q) == true){
 41             System.out.println(o + "\t");
 42         }else{
 43             System.out.println(z + "\t");
 44         }
 45
 46         // true; false
 47         p = true; q = false;
 48         if(p == true){
 49             System.out.print(o + "\t");
 50         }else{
 51             System.out.print(z + "\t");
 52         }
 53         if(q == true){
 54             System.out.print(o + "\t");
 55         }else{
 56             System.out.print(z + "\t");
 57         }
 58         if(p & q == true){
 59             System.out.print(o + "\t");
 60         }else{
 61             System.out.print(z + "\t");
 62         }
 63         if(p | q == true){
 64             System.out.print(o + "\t");
 65         }else{
 66             System.out.print(z + "\t");
 67         }
 68         if(p ^ q == true){
 69             System.out.print(o + "\t");
 70         }else{
 71             System.out.print(z + "\t");
 72         }
 73         if(!(p & q) == true){
 74             System.out.println(o + "\t");
 75         }else{
 76             System.out.println(z + "\t");
 77         }
 78
 79
 80         // false; true
 81         p = false; q = true;
 82         if(p == true){
 83             System.out.print(o + "\t");
 84         }else{
 85             System.out.print(z + "\t");
 86         }
 87         if(q == true){
 88             System.out.print(o + "\t");
 89         }else{
 90             System.out.print(z + "\t");
 91         }
 92         if(p & q == true){
 93             System.out.print(o + "\t");
 94         }else{
 95             System.out.print(z + "\t");
 96         }
 97         if(p | q == true){
 98             System.out.print(o + "\t");
 99         }else{
100             System.out.print(z + "\t");
101         }
102         if(p ^ q == true){
103             System.out.print(o + "\t");
104         }else{
105             System.out.print(z + "\t");
106         }
107         if(!(p & q) == true){
108             System.out.println(o + "\t");
109         }else{
110             System.out.println(z + "\t");
111         }
112
113
114         // false; false
115         p = false; q = false;
116         if(p == true){
117             System.out.print(o + "\t");
118         }else{
119             System.out.print(z + "\t");
120         }
121         if(q == true){
122             System.out.print(o + "\t");
123         }else{
124             System.out.print(z + "\t");
125         }
126         if(p & q == true){
127             System.out.print(o + "\t");
128         }else{
129             System.out.print(z + "\t");
130         }
131         if(p | q == true){
132             System.out.print(o + "\t");
133         }else{
134             System.out.print(z + "\t");
135         }
136         if(p ^ q == true){
137             System.out.print(o + "\t");
138         }else{
139             System.out.print(z + "\t");
140         }
141         if(!(p & q) == true){
142             System.out.println(o + "\t");
143         }else{
144             System.out.println(z + "\t");
145         }
146     }
147 }

执行结果：