1 /*
2 UnnecessaryParentheses
3 tokens = (default)EXPR, IDENT, NUM_DOUBLE, NUM_FLOAT, NUM_INT, NUM_LONG, \
4 STRING_LITERAL, LITERAL_NULL, LITERAL_FALSE, LITERAL_TRUE, ASSIGN, \
5 BAND_ASSIGN, BOR_ASSIGN, BSR_ASSIGN, BXOR_ASSIGN, DIV_ASSIGN, \
6 MINUS_ASSIGN, MOD_ASSIGN, PLUS_ASSIGN, SL_ASSIGN, SR_ASSIGN, STAR_ASSIGN, \
7 LAMBDA, TEXT_BLOCK_LITERAL_BEGIN, LAND, LITERAL_INSTANCEOF, GT, LT, GE, \
8 LE, EQUAL, NOT_EQUAL, UNARY_MINUS, UNARY_PLUS, INC, DEC, LNOT, BNOT, \
9 POST_INC, POST_DEC
10
11
12 */
13
14 package com.puppycrawl.tools.checkstyle.checks.coding.unnecessaryparentheses;
15
16 import java.io.BufferedReader;
17 import java.io.IOException;
18
19 public class InputUnnecessaryParenthesesIdentifier {
20 public static boolean is(Class<?> clazz) {
21 return true
22 && (test(clazz)); // violation 'Unnecessary parentheses around identifier 'test'.'
23 }
24
25 public static boolean isOk(Class<?> clazz) {
26 return true
27 && test(clazz);
28 }
29
30 public int square(int a, int b){
31 int square = (a * b); // violation 'Unnecessary parentheses around assignment right-hand side'
32 return (square); // violation 'Unnecessary parentheses around identifier 'square''
33 }
34
35 public int square1(int a, int b){
36 int square = a * b;
37 return square;
38 }
39
40 public static boolean test(Class<?> clazz) {
41 return true;
42 }
43
44 public static boolean newTest(Class<?> clazz) {
45 return true
46 && test((clazz)); // violation 'Unnecessary parentheses around identifier 'clazz''
47 }
48
49 public static boolean newTest1(Class<?> clazz) {
50 return true
51 && test(clazz);
52 }
53
54 public static boolean newTest2(Class<?> clazz) {
55 return true
56 && ((test( // violation 'Unnecessary parentheses around identifier 'test''
57 (clazz)))); // violation 'Unnecessary parentheses around identifier 'clazz''
58 }
59
60 public String getMarkerNumber() {
61 String markerNumber = "someText";
62 return markerNumber;
63 }
64
65 public boolean m3() {
66 return true;
67 }
68
69 public void testIF() {
70 int a = 9;
71 int b = 10;
72 if (a > b) {
73 System.out.println("a is greater then b");
74 }
75 else if ((b < a) && ( // violation 'Unnecessary parentheses around expression'
76 (8>9) || // violation 'Unnecessary parentheses around expression'
77 (!m3()))) { // violation 'Unnecessary parentheses around expression'
78 System.out.println();
79 }
80 }
81
82 final double get1(int i) { return (double)(get(i)); }
83 // violation above 'Unnecessary parentheses around identifier 'get''
84
85 private Object get(int i) {
86 return null;
87 }
88
89 public String isComment(String str) {
90 return "str";
91 }
92
93 void method() throws IOException {
94 String line = null;
95 System.out.println(" line: null="
96 + false // (line != null)
97 + " empty="
98 + (line.equals(""))
99 + " comment="
100 + (isComment(line)));
101 // violation above 'Unnecessary parentheses around identifier 'isComment''
102 BufferedReader reader = null;
103 line = reader.readLine();
104 }
105 }