How to check if an array contains a partial value once?

up vote
-1
down vote

favorite

I have an array,

arr = [name1 class age, name2 class age, name3 class age, name1 class age, name2 class age]

I want to check each item and store it in another array

String r = Arrays.stream(arr)
 .filter(s -> s.contains("name1"))
 .toArray(String::new);

How do I save just the first name1 using the above code?

output: [name1 class age, name1 class age]

expected output: [name1 class age]

edited Nov 10 at 22:46

Zabuza

11k52538

asked Nov 6 at 20:47

c.r

188

1

what's not working here? Post a Minimal, Complete, and Verifiable example
– Reimeus
Nov 6 at 20:55

@Reimeus Please check the updated post
– c.r
Nov 6 at 20:57

add a comment |

up vote
-1
down vote

favorite

I have an array,

arr = [name1 class age, name2 class age, name3 class age, name1 class age, name2 class age]

I want to check each item and store it in another array

String r = Arrays.stream(arr)
 .filter(s -> s.contains("name1"))
 .toArray(String::new);

How do I save just the first name1 using the above code?

output: [name1 class age, name1 class age]

expected output: [name1 class age]

edited Nov 10 at 22:46

Zabuza

11k52538

asked Nov 6 at 20:47

c.r

188

1

what's not working here? Post a Minimal, Complete, and Verifiable example
– Reimeus
Nov 6 at 20:55

@Reimeus Please check the updated post
– c.r
Nov 6 at 20:57

add a comment |

up vote
-1
down vote

favorite

I have an array,

arr = [name1 class age, name2 class age, name3 class age, name1 class age, name2 class age]

I want to check each item and store it in another array

String r = Arrays.stream(arr)
 .filter(s -> s.contains("name1"))
 .toArray(String::new);

How do I save just the first name1 using the above code?

output: [name1 class age, name1 class age]

expected output: [name1 class age]

edited Nov 10 at 22:46

Zabuza

11k52538

asked Nov 6 at 20:47

c.r

188

I have an array,

arr = [name1 class age, name2 class age, name3 class age, name1 class age, name2 class age]

I want to check each item and store it in another array

String r = Arrays.stream(arr)
 .filter(s -> s.contains("name1"))
 .toArray(String::new);

How do I save just the first name1 using the above code?

output: [name1 class age, name1 class age]

expected output: [name1 class age]

java

edited Nov 10 at 22:46

Zabuza

11k52538

asked Nov 6 at 20:47

c.r

188

edited Nov 10 at 22:46

Zabuza

11k52538

asked Nov 6 at 20:47

c.r

188

edited Nov 10 at 22:46

Zabuza

11k52538

edited Nov 10 at 22:46

Zabuza

11k52538

edited Nov 10 at 22:46

Zabuza

11k52538

asked Nov 6 at 20:47

c.r

188

asked Nov 6 at 20:47

c.r

188

asked Nov 6 at 20:47

c.r

188

1

what's not working here? Post a Minimal, Complete, and Verifiable example
– Reimeus
Nov 6 at 20:55

@Reimeus Please check the updated post
– c.r
Nov 6 at 20:57

add a comment |

1

what's not working here? Post a Minimal, Complete, and Verifiable example
– Reimeus
Nov 6 at 20:55

@Reimeus Please check the updated post
– c.r
Nov 6 at 20:57

what's not working here? Post a Minimal, Complete, and Verifiable example
– Reimeus
Nov 6 at 20:55

@Reimeus Please check the updated post
– c.r
Nov 6 at 20:57

add a comment |

2 Answers
2

active

oldest

votes

up vote
1
down vote

accepted

In case you need to retrieve only the first found element:

String r = new String Arrays.stream(arr)
 .filter(s -> s.contains("name1"))
 .findFirst().orElse("") ;

edited Nov 10 at 22:21

marc_s

566k12610921245

answered Nov 6 at 21:24

oleg.cherednik

4,3132916

add a comment |

up vote
1
down vote

You could map the first match

String array = 
 Arrays.stream(arr).filter
 (s -> s.contains("name1")).findFirst().map(s -> new String s ).orElse(new String );

edited Nov 6 at 21:50

answered Nov 6 at 21:00

Reimeus

140k10155221

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

up vote
1
down vote

accepted

In case you need to retrieve only the first found element:

String r = new String Arrays.stream(arr)
 .filter(s -> s.contains("name1"))
 .findFirst().orElse("") ;

edited Nov 10 at 22:21

marc_s

566k12610921245

answered Nov 6 at 21:24

oleg.cherednik

4,3132916

add a comment |

up vote
1
down vote

accepted

In case you need to retrieve only the first found element:

String r = new String Arrays.stream(arr)
 .filter(s -> s.contains("name1"))
 .findFirst().orElse("") ;

edited Nov 10 at 22:21

marc_s

566k12610921245

answered Nov 6 at 21:24

oleg.cherednik

4,3132916

add a comment |

up vote
1
down vote

accepted

In case you need to retrieve only the first found element:

String r = new String Arrays.stream(arr)
 .filter(s -> s.contains("name1"))
 .findFirst().orElse("") ;

edited Nov 10 at 22:21

marc_s

566k12610921245

answered Nov 6 at 21:24

oleg.cherednik

4,3132916

In case you need to retrieve only the first found element:

String r = new String Arrays.stream(arr)
 .filter(s -> s.contains("name1"))
 .findFirst().orElse("") ;

edited Nov 10 at 22:21

marc_s

566k12610921245

answered Nov 6 at 21:24

oleg.cherednik

4,3132916

edited Nov 10 at 22:21

marc_s

566k12610921245

edited Nov 10 at 22:21

marc_s

566k12610921245

edited Nov 10 at 22:21

marc_s

566k12610921245

answered Nov 6 at 21:24

oleg.cherednik

4,3132916

answered Nov 6 at 21:24

oleg.cherednik

4,3132916

answered Nov 6 at 21:24

oleg.cherednik

4,3132916

add a comment |

up vote
1
down vote

You could map the first match

String array = 
 Arrays.stream(arr).filter
 (s -> s.contains("name1")).findFirst().map(s -> new String s ).orElse(new String );

edited Nov 6 at 21:50

answered Nov 6 at 21:00

Reimeus

140k10155221

add a comment |

up vote
1
down vote

You could map the first match

String array = 
 Arrays.stream(arr).filter
 (s -> s.contains("name1")).findFirst().map(s -> new String s ).orElse(new String );

edited Nov 6 at 21:50

answered Nov 6 at 21:00

Reimeus

140k10155221

add a comment |

up vote
1
down vote

You could map the first match

String array = 
 Arrays.stream(arr).filter
 (s -> s.contains("name1")).findFirst().map(s -> new String s ).orElse(new String );

edited Nov 6 at 21:50

answered Nov 6 at 21:00

Reimeus

140k10155221

You could map the first match

String array = 
 Arrays.stream(arr).filter
 (s -> s.contains("name1")).findFirst().map(s -> new String s ).orElse(new String );

edited Nov 6 at 21:50

answered Nov 6 at 21:00

Reimeus

140k10155221

edited Nov 6 at 21:50

answered Nov 6 at 21:00

Reimeus

140k10155221

answered Nov 6 at 21:00

Reimeus

140k10155221

answered Nov 6 at 21:00

Reimeus

140k10155221

add a comment |

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