这个 toString() 方法 LinkedBlockingDeque 返回此集合的字符串表示形式。字符串表示法由集合元素的列表组成,这些元素按迭代器返回的顺序排列,用方括号括起来 (“[]”) .相邻元素由字符分隔 “, “ (逗号和空格)。元素被转换为字符串,就像字符串一样。(物体)的价值。
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语法:
public String toString()
参数: 此方法不接受任何参数。
返回: 此方法返回此集合的字符串表示形式。
下面的程序举例说明 toString() LinkedBlockingDeque的方法:
项目1:
// Java Program Demonstrate toString() // method of LinkedBlockingDeque import java.util.concurrent.LinkedBlockingDeque; import java.util.*; public class GFG { public static void main(String[] args) { // create object of LinkedBlockingDeque LinkedBlockingDeque<Integer> LBD = new LinkedBlockingDeque<Integer>(); // Add numbers to end of LinkedBlockingDeque LBD.add( 7855642 ); LBD.add( 35658786 ); LBD.add( 5278367 ); LBD.add( 74381793 ); // Print the queue System.out.println( "Linked Blocking Deque: " + LBD); System.out.println( "LBD in string " + LBD.toString()); } } |
输出:
Linked Blocking Deque: [7855642, 35658786, 5278367, 74381793] LBD in string [7855642, 35658786, 5278367, 74381793]
项目2:
// Java Program Demonstrate toString() // method of LinkedBlockingDeque import java.util.concurrent.LinkedBlockingDeque; import java.util.*; public class GFG { public static void main(String[] args) { // create object of LinkedBlockingDeque LinkedBlockingDeque<String> LBD = new LinkedBlockingDeque<String>(); // Add numbers to end of LinkedBlockingDeque LBD.add( "geeks" ); LBD.add( "sudo" ); LBD.add( "gate" ); LBD.add( "gopal" ); // Print the queue System.out.println( "Linked Blocking Deque: " + LBD); System.out.println( "LBD in string " + LBD.toString()); } } |
输出:
Linked Blocking Deque: [geeks, sudo, gate, gopal] LBD in string [geeks, sudo, gate, gopal]
参考: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/LinkedBlockingDeque.html#toString–
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